{"label": "pie_cpp_test_001506", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 11, "hidden_test_count": 1, "problem_id": "p03766", "reference_metric": "runtime_cpu_ns", "reference_value": 11, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_001506.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_001506", "task_path": "tasks/test/pie_cpp_test_001506.json", "visible_test_count": 1}, "problem_id": "p03766", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n\nExpected output:\n4\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\n#define int long long\n\n#define in ({int x=0;int c=getchar(),n=0;for(;!isdigit(c);c=getchar()) n=(c=='-');for(;isdigit(c);c=getchar()) x=x*10+c-'0';n?-x:x;})\n\nmt19937 rng(chrono::steady_clock::now().time_since_epoch().count());\n\nint rnd(int l,int r){return l+rng()%(r-l+1);}\n\n#define fasty ios_base::sync_with_stdio(0),cin.tie(0);\n\n#define forinc(a,b,c) for(int a=b,_c=c;a<=_c;++a)\n\n#define fordec(a,b,c) for(int a=b,_c=c;a>=_c;--a)\n\n#define forv(a,b) for(auto&a:b)\n\n#define fi first\n\n#define se second\n\n#define pb push_back\n\n#define ii pair<int,int>\n\n#define mt make_tuple\n\n#define all(a) a.begin(),a.end()\n\n#define reset(f, x) memset(f, x, sizeof(f))\n\n#define bit(x,i) ((x>>(i-1))&1)\n\n#define on(x,i) (x|(1ll<<(i-1)))\n\n#define off(x,i) (x&~(1<<(i-1)))\n\n#define gg exit(0);\n\n\n\n\n\nconst int M=1000000007;\n\n\n\nint n,ret=1,tmp=1;\n\nint f[1000010];\n\n\n\nmain(){\n\n    #define task \"TASK\"\n\n    //freopen(task\".inp\",\"r\",stdin);\n\n    //freopen(task\".out\",\"w\",stdout);\n\n\n\n    n=in;\n\n    forinc(i,1,n){\n\n        f[i]=(f[i]+f[i-1])%M;\n\n        tmp=(tmp+f[i])%M;\n\n        f[i+3]=(f[i+3]+tmp)%M;\n\n        ret=(ret+tmp%M*(n-1)%M*(i==n ? 1 : n)%M)%M;\n\n    }\n\n    cout<<ret;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_001506"}
{"label": "pie_cpp_test_001531", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 6, "hidden_test_count": 1, "problem_id": "p03766", "reference_metric": "runtime_cpu_ns", "reference_value": 6, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_001531.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_001531", "task_path": "tasks/test/pie_cpp_test_001531.json", "visible_test_count": 1}, "problem_id": "p03766", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n\nExpected output:\n4\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\n\n\nint main(){\n\n    constexpr long MOD = 1000000007;\n\n    long N;\n\n    cin >> N;\n\n    long dp{N};\n\n    vector<long> sum(4, (N - 1) * N % MOD);\n\n    sum[0] = 0;\n\n    for(long i = 3, j = 2; i != N + 3; ++i, ++j)sum[i & 3] = (sum[j & 3] - 1 + (dp += sum[(j ^ 2) & 3])) % MOD;\n\n    cout << dp % MOD << endl;\n\n    return 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_001531"}
{"label": "pie_cpp_test_001533", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 17, "hidden_test_count": 1, "problem_id": "p03766", "reference_metric": "runtime_cpu_ns", "reference_value": 17, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_001533.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_001533", "task_path": "tasks/test/pie_cpp_test_001533.json", "visible_test_count": 1}, "problem_id": "p03766", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n\nExpected output:\n4\n\n\nProgram:\n```cpp\n#include<bits/stdc++.h>\n\n#define re register\n\n#define N 1000005\n\n#define mod 1000000007\n\nusing namespace std;\n\ntemplate<typename _int>\n\ninline void read(re _int&x){\n\n\tre _int res=0,flag=1;re char opt;\n\n\twhile((opt=getchar())<'0'||opt>'9')if(opt=='-')flag=-1;\n\n\twhile(opt>='0'&&opt<='9'){res=(res<<1)+(res<<3)+opt-48;opt=getchar();}\n\n\tx=res*flag;\n\n}\n\ntypedef long long ll; \n\nll n,dp[N],sum[N],ans;\n\nint main(void){\n\n\tre ll i;*dp=1;*sum=1;\n\n\tread(n);ans=(n>2);\n\n\tif(n==1)return puts(\"1\"),0;\n\n\tfor(i=1;i<=n;++i){\n\n\t\t(dp[i]+=(sum[i-1]-((i>=2)?dp[i-2]:0)+mod)%mod)%=mod;\n\n//\t\tprintf(\"%lld %lld\\n\",sum[i-1],((i>=2)?dp[i-2]:0));\n\n\t\tsum[i]=(sum[i-1]+dp[i])%mod;\n\n\t\tif(i<n-1)(ans+=(1ll*(n-1)*(n-1)%mod+min(i+2,n-1))*dp[i]%mod)%=mod;\n\n\t}\n\n\tprintf(\"%lld\\n\",((ans+1ll*n*dp[n-1]%mod)%mod+1ll*(n-1)*(n-1)%mod+1)%mod);\n\n\treturn 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_001533"}
{"label": "pie_cpp_test_001549", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 11, "hidden_test_count": 1, "problem_id": "p03766", "reference_metric": "runtime_cpu_ns", "reference_value": 11, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_001549.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_001549", "task_path": "tasks/test/pie_cpp_test_001549.json", "visible_test_count": 1}, "problem_id": "p03766", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n\nExpected output:\n4\n\n\nProgram:\n```cpp\n#include<bits/stdc++.h>\n\nusing namespace std;\n\n#ifndef ONLINE_JUDGE\n\n#define dbg(x...) do{cout << \"\\033[32;1m\" << #x << \"->\" ; err(x);} while(0)\n\nvoid err(){cout << \"\\033[39;0m\" << endl;}\n\ntemplate<template<typename...> class T,typename t,typename... A>\n\nvoid err(T<t> a,A... x){for (auto v:a) cout << v << ' '; err(x...);}\n\ntemplate<typename T,typename... A>\n\nvoid err(T a,A... x){cout << a << ' '; err(x...);}\n\n#else\n\n#define dbg(...)\n\n#endif\n\ntypedef long long ll;\n\ntypedef pair<int,int> pi;\n\ntypedef vector<int> vi;\n\ntemplate<class T> using vc=vector<T>;\n\ntemplate<class T> using vvc=vc<vc<T>>;\n\ntemplate<class T> void mkuni(vector<T>&v)\n\n{\n\n    sort(v.begin(),v.end());\n\n    v.erase(unique(v.begin(),v.end()),v.end());\n\n}\n\ntemplate<class T>\n\nvoid print(T x,int suc=1)\n\n{\n\n    cout<<x;\n\n    if(suc==1) cout<<'\\n';\n\n    else cout<<' ';\n\n}\n\ntemplate<class T>\n\nvoid print(const vector<T>&v,int suc=1)\n\n{\n\n    for(int i=0;i<v.size();i++)\n\n        print(v[i],i==(int)(v.size())-1?suc:2);\n\n}\n\nconst int INF=0x3f3f3f3f;\n\nconst int mod=1e9+7;\n\nconst int maxn=1e6+7;\n\nll dp[maxn];\n\nll pre[maxn];\n\nint main()\n\n{\n\n\tint n;\n\n    cin>>n;\n\n    dp[1]=n;\n\n    pre[1]=n;\n\n    for(int i=2;i<=n;i++)\n\n    {\n\n        dp[i]=(dp[i-1]+1LL*(n-1)*(n-1)%mod)%mod;\n\n        if(i>=3) dp[i]=(dp[i]+pre[i-3])%mod;\n\n        if(i==2) dp[i]=(dp[i]+n-1)%mod;\n\n        else dp[i]=(dp[i]+n-i+2);\n\n        pre[i]=(pre[i-1]+dp[i])%mod;\n\n        //dbg(i,dp[i]);\n\n    }\n\n    cout<<dp[n]<<'\\n';\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_001549"}
{"label": "pie_cpp_test_002121", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 84, "hidden_test_count": 1, "problem_id": "p03275", "reference_metric": "runtime_cpu_ns", "reference_value": 84, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002121.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002121", "task_path": "tasks/test/pie_cpp_test_002121.json", "visible_test_count": 1}, "problem_id": "p03275", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3\n10 30 20\n\nExpected output:\n30\n\n\nProgram:\n```cpp\n#include<iostream>\n\n#include<cstdio>\n\n#include<math.h>\n\n#include<algorithm>\n\n#include<map>\n\n#include<set>\n\n#include<bitset>\n\n#include<stack>\n\n#include<queue>\n\n#include<string>\n\n#include<cstring>\n\n\n\n\n\nusing namespace std;\n\ntypedef long long LL;\n\nconst int maxn=2e6+7;\n\nLL n;\n\nLL tot=0;\n\nLL mn=0x3f,mx=-0x3f;\n\nLL a[maxn];\n\nLL bit[maxn];\n\n\n\nstruct node {\n\nLL val,pos;\n\n}arr[maxn];\n\n\n\nbool cmp(node n1,node n2)\n\n{\n\n    return n1.val==n2.val?n1.pos<n2.pos:n1.val<n2.val;\n\n}\n\n\n\nvoid update(LL x,LL val)\n\n{\n\n    for(; x< maxn ;x+=(x & -x))\n\n    {\n\n        bit[x]+=val;\n\n    }\n\n}\n\n\n\nLL getsum(LL x)\n\n{\n\n    LL ans=0;\n\n    for(;x>0;x-=(x & -x))\n\n    {\n\n        ans += bit[x];\n\n    }\n\n    return ans;\n\n}\n\n\n\n\n\n\n\nbool check(LL x){\n\n    memset(bit,0,sizeof(bit));\n\n     memset(arr,0,sizeof(arr));\n\n\n\n\n\n\tfor(int i=1;i<=n;i++)\n\n    {\n\n        if(a[i]<=x)arr[i].val=-1;\n\n        else arr[i].val=1;\n\n        arr[i].pos=i+1;\n\n    }\n\n\n\n    arr[0].val=0;\n\n\tarr[0].pos=1;\n\n\n\n\tfor(int i=1;i<=n;i++)\n\n\tarr[i].val+=arr[i-1].val;\n\n\tsort(arr,arr+n+1,cmp);\n\n\n\n\tLL ans=0;\n\n\tfor(int i=0;i<=n;i++)\n\n    {\n\n        ans+=(i-getsum(arr[i].pos));\n\n        update(arr[i].pos,1);\n\n    }\n\n\treturn ans*2 > tot;\n\n}\n\n\n\n\n\nint main(){\n\n   scanf(\"%lld\",&n);\n\n\n\n   for(int i=1;i<=n;i++)\n\n    {\n\n   \t scanf(\"%lld\",&a[i]);\n\n   \t mn=min(mn,a[i]);\n\n   \t mx=max(mx,a[i]);\n\n   \t tot+=i;\n\n   }\n\n\n\n   LL l=mn,r=mx;\n\n   while(r-l>1)\n\n    {\n\n   \t  LL mid=(l+r)/2;\n\n   \t if(check(mid)) r=mid;\n\n   \t else l=mid;\n\n   \t //printf(\"s%d\",mid);\n\n   }\n\n   printf(\"%lld\\n\",r);\n\n\n\n   return 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002121"}
{"label": "pie_cpp_test_002124", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 60, "hidden_test_count": 1, "problem_id": "p03275", "reference_metric": "runtime_cpu_ns", "reference_value": 60, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002124.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002124", "task_path": "tasks/test/pie_cpp_test_002124.json", "visible_test_count": 1}, "problem_id": "p03275", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3\n10 30 20\n\nExpected output:\n30\n\n\nProgram:\n```cpp\n#include<cstdio>\n\n#include<cstring>\n\n#include<algorithm>\n\n#include<cmath>\n\n#include<set>\n\n#define MN 100005\n\nusing namespace std;\n\nint n,tt,a[MN],num[MN],tmp[MN],tmpx[MN];\n\nlong long tx;\n\nvoid mergesort(int ll,int rr){\n\n\tif(ll==rr)return;\n\n\tint mid=(ll+rr)>>1;\n\n\tmergesort(ll,mid),mergesort(mid+1,rr);\n\n\tint tl=ll,tr=mid+1,now=0;\n\n\twhile(tl<=mid&&tr<=rr){\n\n\t\tif(tmp[tl]<tmp[tr])tmpx[++now]=tmp[tl++];\n\n\t\telse {\n\n\t\t\ttx+=tl-ll;\n\n\t\t\ttmpx[++now]=tmp[tr++];\n\n\t\t}\n\n\t}\n\n\twhile(tl<=mid)tmpx[++now]=tmp[tl++];\n\n\twhile(tr<=rr)tx+=tl-ll,tmpx[++now]=tmp[tr++];\n\n\tfor(int i=ll,j=1;i<=rr;i++,j++)tmp[i]=tmpx[j];\n\n}\n\nbool check(int mid){\n\n\tfor(int i=1;i<=n;i++)\n\n\t\ttmp[i]=tmp[i-1]+(a[i]<=mid?1:-1);\n\n\ttx=0;mergesort(0,n);\n\n\treturn tx>=(1ll*n*(n+1)/4+1);\n\n}\n\nint main(){\n\n\tscanf(\"%d\",&n);\n\n\tfor(int i=1;i<=n;i++)scanf(\"%d\",&a[i]),num[++tt]=a[i];sort(num+1,num+tt+1);tt=unique(num+1,num+n+1)-num;\n\n\tint l=1,r=tt-1,ans=tt-1;\n\n\twhile(l<=r){\n\n\t\tint mid=(l+r)>>1;\n\n\t\tif(check(num[mid]))ans=mid,r=mid-1;\n\n\t\telse l=mid+1;\n\n\t}printf(\"%d\\n\",num[ans]);\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002124"}
{"label": "pie_cpp_test_002128", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 131, "hidden_test_count": 1, "problem_id": "p03275", "reference_metric": "runtime_cpu_ns", "reference_value": 131, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002128.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002128", "task_path": "tasks/test/pie_cpp_test_002128.json", "visible_test_count": 1}, "problem_id": "p03275", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3\n10 30 20\n\nExpected output:\n30\n\n\nProgram:\n```cpp\n#include <cstdio>\n\n#include <cstdlib>\n\n#include <cstring>\n\n#include <cmath>\n\n#include <algorithm>\n\n#include <iostream>\n\n#include <iomanip>\n\n#include <string>\n\n#include <vector>\n\n#include <queue>\n\n#include <map>\n\n#include <set>\n\n\n\n#define ll long long\n\n#define ull unsigned long long\n\n#define BUG printf(\"************\\n\")\n\nusing namespace std;\n\n\n\nconst ull mod = 1e8 + 7;\n\nconst int maxn = 4e5 + 10;\n\nconst int maxm = 1e6 + 10;\n\nconst double eps = 1e-8;\n\n\n\nll n, m;\n\nll a[maxn], b[maxn], s[maxn], f[maxn] ,c[maxn], r[maxn];\n\n\n\ninline int lb(int x) {\n\n    return x & -x;\n\n}\n\n\n\nvoid add(ll num, int x) {\n\n    for (int i = x; i <= n; i+=lb(i))\n\n        c[i] += num;\n\n}\n\n\n\nll read(int x) {\n\n    ll tot = 0;\n\n    for (int i = x; i; i -= lb(i))tot += c[i];\n\n    return tot;\n\n}\n\n\n\nconst int cmp(const int i, const int j) {\n\n    return f[j] == f[i] ? i < j : f[i] < f[j];\n\n}\n\n\n\nll inversed_pair() {\n\n    memset(c, 0, sizeof(c));\n\n    for (int i = 1; i <= n; ++i)r[i] = i;\n\n    sort(r + 1, r + 1 + n, cmp);\n\n    ll tot = 0;\n\n    for (int i = 1; i <= n; ++i) {\n\n        tot += read(r[i]);\n\n        add(1, r[i]);\n\n    }\n\n    return tot;\n\n}\n\n\n\nbool check(int x) {\n\n    for (int i = 1; i <= n; ++i) {\n\n        if (a[i] >= x)b[i] = 1;\n\n        else b[i] = 0;\n\n    }\n\n    for (int i = 1; i <= n; ++i) {\n\n        s[i] = s[i - 1] + b[i];\n\n    }\n\n    int t = 0;\n\n    for (int i = 1; i <= n; ++i) {\n\n        f[i] = 2 * s[i] - i;\n\n        if (f[i] >= f[0])++t;\n\n    }\n\n    return (2 * (inversed_pair() + t) >= m);\n\n}\n\n\n\nint main() {\n\n    ios::sync_with_stdio(0);\n\n    cin.tie(0);\n\n    cout.tie(0);\n\n    cin >> n;\n\n    for (int i = 1; i <= n; ++i) {\n\n        cin >> a[i];\n\n    }\n\n    if (n == 1) {\n\n        cout << a[1] << endl;\n\n        return 0;\n\n    }\n\n    int l = 1, r = 1e9+10;\n\n    m = (n + 1) * n / 2;\n\n    while (l < r) {\n\n        int mid = (l + r + 1) / 2;\n\n        if (!check(mid))r = mid - 1;\n\n        else l = mid;\n\n    }\n\n    cout << l << endl;\n\n    return 0;\n\n}\n\n/*\n\n9\n\n7 12 4 18 3 16 18 5 9\n\n*//*\n\n10\n\n16 18 12 17 15 8 10 9 16 4\n\n */\n```", "split": "test", "task_id": "pie_cpp_test_002128"}
{"label": "pie_cpp_test_002138", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 437, "hidden_test_count": 1, "problem_id": "p03275", "reference_metric": "runtime_cpu_ns", "reference_value": 437, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002138.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002138", "task_path": "tasks/test/pie_cpp_test_002138.json", "visible_test_count": 1}, "problem_id": "p03275", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3\n10 30 20\n\nExpected output:\n30\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\n#define ALL(A) (A).begin(),(A).end()\n\n#define ll long long\n\n#define int long long\n\nll msize;\n\nint N,Max=0;\n\nvector<int> bit(1e7);\n\nint lowbit(int x){\n\n\treturn x&(-x);\n\n}\n\nvoid add(int x){\n\n\tfor(int i=x;i<=1e7;i+=lowbit(i))\n\n\tbit[i]+=1;\n\n}\n\nll sum(int a){\n\n\tll ret = 0;\n\n\tfor(int x = a;x>0;x -=x&-x)ret += bit[x];\n\n\treturn ret;\n\n}\n\nll count(vector<int> &c){\n\n\tll ret = 0;\n\n\tfill(ALL(bit),0);\n\n\tfor(int j=0;j<c.size();j++){\n\n\t\tret += sum(c[j] + N+1);\n\n\t\tadd(c[j] + N+1);\n\n\t}\n\n\t//cout << ret << endl;\n\n\treturn ret;\n\n}\n\nbool check(vector<int> &a,int k){\n\n\tvector<int> b = a,c(a.size()+1);\n\n\tfor(int i=0;i<b.size();i++){\n\n\t\tif(a[i] >= k)b[i]=1;\n\n\t\telse b[i] = -1;\n\n\t}\n\n\t//cout << \"(msize+1)/2) =\" << (msize+1)/2 <<\" \";\n\n\t//cout << \"k = \" << k <<\" \";\n\n\tc[0] = 0;\n\n\tfor(int i=0;i<b.size();i++){\n\n\t\tc[i+1] = c[i] + b[i];\n\n\t}\n\n\t//c\u306e\u3042\u308b\u533a\u9593\u306b\u3064\u3044\u3066\u3001k\u4ee5\u4e0a\u306e\u6570\u3092\u30ab\u30a6\u30f3\u30c8\u3059\u308b\n\n\tif(count(c) >= (msize+1)/2)return 1;\n\n\telse return 0;\n\n}\n\nsigned main(void){\n\n\t\n\n\tcin >> N;\n\n\tvector<int> a(N);\n\n\tmsize = (ll)N*(N+1)/2;\n\n\tfor(int i=0;i<N;i++){\n\n\t\tcin >> a[i];\n\n\t\tMax = max(Max,a[i]);\n\n\t}\n\n\tint ok = -1;\n\n\tint ng = 1e9+7;\n\n\twhile(abs(ok-ng)>1){\n\n\t\tint mid = (ok+ng)/2;\n\n\t\t//check(vector<int> &a,mid)\u306fmid\u4ee5\u4e0a\u306e\u6570\u304cm\u306b\u534a\u5206\u4ee5\u4e0a\u542b\u307e\u308c\u3066\u3044\u305f\u5834\u54081\u3092\u8fd4\u3059\n\n\t\tif(check(a,mid)){\n\n\t\t\tok = mid;\n\n\t\t}else{\n\n\t\t\tng = mid;\n\n\t\t}\n\n\t}\n\n\tcout << ok << endl;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002138"}
{"label": "pie_cpp_test_002142", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 111, "hidden_test_count": 1, "problem_id": "p03275", "reference_metric": "runtime_cpu_ns", "reference_value": 111, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002142.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002142", "task_path": "tasks/test/pie_cpp_test_002142.json", "visible_test_count": 1}, "problem_id": "p03275", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3\n10 30 20\n\nExpected output:\n30\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\n#define M 1000000007\n\n#define pb emplace_back\n\n#define F first\n\n#define S second\n\n#define rep(i, st, ed) for(ll i=st; i<ed; ++i)\n\n#define repn(i, st, ed) for(ll i=st; i<=ed; ++i)\n\n#define repb(i, ed, st) for(ll i=ed; i>=st; --i)\n\n#define all(v) v.begin(),v.end()\n\n#define UNIQUE(v) v.erase( unique(v.begin(), v.end()), v.end() );\n\n#define PI acosl(-1.0)\n\n#define mp(a, b) make_pair(a, b)\n\n#define eps 1e-9\n\n#define FAST ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);\n\ntypedef long long ll;\n\ntemplate<class T> void chmax(T &a,T b) { if (a<b) a=b;}\n\ntemplate<class T> void chmin(T &a,T b) { if (a>b) a=b;}\n\nconst int N = 2e5 + 10;\n\nconst ll INF = 1LL << 60;\n\nll iv[N];\n\nll powM(ll a, ll b){ll res = 1;for(;b;a=a*a%M,b/=2) if(b&1) res=res*a%M;return res;}\n\nll nckbig(int n, int k){ll ans = 1;for(int i=1; i<=k; ++i){ans = ans*(n-i+1)%M*iv[i]%M;}return ans;}\n\nvoid caliv(){iv[1] = 1;for(int i=2; i<N; i++){iv[i] = M-M/i*iv[M%i]%M;}}\n\nll f1[N], f2[N];\n\nvoid calf(){f1[0] = f2[0] = 1;for(int i=2; i <N; ++i){f1[i] = f1[i-1]*i%M;f2[i] = f2[i-i]*iv[i]%M;}}\n\nll nck(int n, int k){return f1[n]*f2[n-k]%M*f2[k]%M;}\n\nll npk(int n, int k){return f1[n]*f2[n-k]%M;}\n\nvoid Rnck(int big){if(big){caliv();}else{calf();}}\n\n\n\nll f[N*4];\n\nvector<ll> v;\n\nvoid upd(ll pos, ll val)\n\n{\n\n\tfor(int i=pos; i<N*4; i += i&-i) f[i] += val;\n\n}\n\n\n\nll query(ll pos)\n\n{\n\n\tll res = 0;\n\n\tfor(int i=pos; i>0; i -= i&-i) res += f[i];\n\n\treturn res;\n\n} \n\n\n\nbool check(ll m, ll sz)\n\n{\n\n\tmemset(f, 0, sizeof(f));\n\n\tll inv = 0;\n\n\tll n = sz;\n\n\tvector<ll> tmp(n+1);\n\n\ttmp[0] = 0;\n\n\tfor(int i=0; i<n; i++)\n\n\t\ttmp[i+1] = tmp[i]  + (v[i] >= m?1:-1);\n\n\tfor(int i=0; i<=n; i++)\n\n\t{\n\n\t\tll ind = tmp[i] + N + 1;\n\n\t\tinv += query(ind);\n\n\t\tupd(ind, 1);\n\n\t} \n\n\tll total = (n*(n+1)) /2;\n\n\tll obj = (total+1) /2;\n\n\tif(inv>= obj) return true;\n\n\telse return false;\n\n}\n\n\n\n\n\nvoid solve()\n\n{\n\n\tint n;\n\n\tcin>>n;\n\n\tv.resize(n);\n\n\tfor(int i=0; i<n; i++) cin>>v[i];\n\n\tll l = 0, r = 1 << 30;\n\n\tll ans = 0;\n\n\twhile(l <= r)\n\n\t{\n\n\t\tll mid = l + (r-l) / 2;\n\n\t\tif(check(mid, n)) {ans = mid, l = mid + 1;}\n\n\t\telse r = mid - 1;\n\n\t}\n\n\tcout<<ans<<endl;\n\n}\n\n\n\n\n\nint main()\n\n{\n\n    FAST\n\n    ll Tests = 1;\n\n    //cin>>Tests;\n\n    while(Tests--)\n\n    {\n\n        solve();\n\n    }\n\n    return 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002142"}
{"label": "pie_cpp_test_002153", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 85, "hidden_test_count": 1, "problem_id": "p03275", "reference_metric": "runtime_cpu_ns", "reference_value": 85, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002153.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002153", "task_path": "tasks/test/pie_cpp_test_002153.json", "visible_test_count": 1}, "problem_id": "p03275", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3\n10 30 20\n\nExpected output:\n30\n\n\nProgram:\n```cpp\n#include<cstdio>\n\n#include<cstring>\n\nusing namespace std;\n\n#define maxn 100005\n\ninline int max(int a,int b)\n\n{\n\n\tif(a>b)\treturn a;\n\n\treturn b;\n\n}\n\nlong long l,r,n,a[maxn],c[maxn<<1+5],pre[maxn];\n\ninline int lowbit(int x)\n\n{\n\n\treturn x&(-x);\n\n}\n\ninline void modify(int place,long long val)\n\n{\n\n\tfor(int i=place;i<=(maxn<<1+5);i+=lowbit(i))\n\n\t\tc[i]+=val;\n\n}\n\ninline long long query(long long place)\n\n{\n\n\tlong long ans=0;\n\n\tfor(int i=place;i;i-=lowbit(i))\n\n\t\tans+=c[i];\n\n\treturn ans;\n\n}\n\nbool check(int x)\n\n{\n\n\tmemset(c,0,sizeof(c));\n\n\tpre[0]=0;\n\n\tfor(int i=1;i<=n;++i)\n\n\t\tpre[i]=pre[i-1]+(a[i]>=x?1:-1);\n\n\tlong long ans=0;\n\n\tfor(int i=0;i<=n;++i)\n\n\t{\n\n\t\tans+=query(pre[i]+maxn);\n\n\t\tmodify(pre[i]+maxn,1ll);\n\n\t}\n\n\treturn ans>=n*(n+1)/4;\n\n}\n\nint main()\n\n{\n\n\tscanf(\"%d\",&n);\n\n\tfor(int i=1;i<=n;++i)\n\n\t\tscanf(\"%d\",&a[i]),r=max(r,a[i]);\n\n\tint mid;\n\n\twhile(l<=r)\n\n\t{\n\n\t\tmid=(l+r)>>1;\n\n\t\tif(check(mid))\tl=mid+1;\n\n\t\telse r=mid-1;\n\n\t}\n\n\tprintf(\"%d\\n\",r);\n\n\treturn 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002153"}
{"label": "pie_cpp_test_002170", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 85, "hidden_test_count": 1, "problem_id": "p03275", "reference_metric": "runtime_cpu_ns", "reference_value": 85, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002170.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002170", "task_path": "tasks/test/pie_cpp_test_002170.json", "visible_test_count": 1}, "problem_id": "p03275", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3\n10 30 20\n\nExpected output:\n30\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <cstdio>\n\n#include <cstring>\n\n#define int long long\n\n#define N 100002\n\nusing namespace std;\n\nint n,i,a[N],c[N*2],sum[N],l,r,mid,ans;\n\nint lowbit(int x)\n\n{\n\n\treturn x&(-x);\n\n}\n\nvoid modify(int x,int y)\n\n{\n\n\tfor(int i=x;i<=N+n;i+=lowbit(i)) c[i]+=y;\n\n}\n\nint ask(int x)\n\n{\n\n\tint ans=0;\n\n\tfor(int i=x;i>=N-n;i-=lowbit(i)) ans+=c[i];\n\n\treturn ans;\n\n}\n\nbool check(int x)\n\n{\n\n\tint ans=0;\n\n\tmemset(c,0,sizeof(c));\n\n\tfor(int i=1;i<=n;i++){\n\n\t\tif(a[i]<x) sum[i]=sum[i-1]-1;\n\n\t\telse sum[i]=sum[i-1]+1;\n\n\t}\n\n\tfor(int i=0;i<=n;i++){\n\n\t\tans+=ask(sum[i]+N);\n\n\t\tmodify(sum[i]+N,1);\n\n\t}\n\n\tif(ans>=n*(n+1)/4) return 1;\n\n\treturn 0;\n\n}\n\nsigned main()\n\n{\n\n\tcin>>n;\n\n\tfor(i=1;i<=n;i++){\n\n\t\tcin>>a[i];\n\n\t\tr=max(r,a[i]);\n\n\t}\n\n\twhile(l<=r){\n\n\t\tmid=(l+r)/2;\n\n\t\tif(check(mid)){\n\n\t\t\tans=mid;\n\n\t\t\tl=mid+1;\n\n\t\t}\n\n\t\telse r=mid-1;\n\n\t}\n\n\tcout<<ans<<endl;\n\n\treturn 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002170"}
{"label": "pie_cpp_test_002182", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 93, "hidden_test_count": 1, "problem_id": "p03275", "reference_metric": "runtime_cpu_ns", "reference_value": 93, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002182.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002182", "task_path": "tasks/test/pie_cpp_test_002182.json", "visible_test_count": 1}, "problem_id": "p03275", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3\n10 30 20\n\nExpected output:\n30\n\n\nProgram:\n```cpp\n#include<iostream>\n\n#define int long long\n\nusing namespace std;\n\nint a[1000001],n,ans;\n\nint s[1000001],c[5000001];\n\nint lowbit(int x)\n\n{\n\n\treturn x&(-x);\n\n}\n\nvoid add(int x,int d)\n\n{\n\n\tfor (;x<=n*4;x+=lowbit(x))\n\n\t\tc[x]+=d;\n\n\treturn;\n\n}\n\nint sum(int x)\n\n{\n\n\tans=0;\n\n\tfor (;x>=1;x-=lowbit(x))\n\n\t\tans+=c[x];\n\n\treturn ans;\n\n}\n\nbool check(int x)\n\n{\n\n\tfor (int i=1;i<=n*4;++i)\n\n\t\tc[i]=0;\n\n\ts[0]=0;\n\n\tint res=0;\n\n\tfor (int i=1;i<=n;++i)\n\n\t{\n\n\t\tif (a[i]>=x)\n\n\t\t\ts[i]=s[i-1]+1;\n\n\t\telse\n\n\t\t\ts[i]=s[i-1]-1;\n\n\t}\n\n\tfor (int i=0;i<=n;++i)\n\n\t{\n\n\t\tres+=sum(s[i]+n+1);\n\n\t\tadd(s[i]+n+1,1);\n\n\t}\n\n\treturn res>=(n+1)*n/4;\n\n}\n\nsigned main()\n\n{\n\n\tint first,last,mid,ans=-(1e+9),minn=1e+9,maxn=-(1e+9);\n\n\tcin>>n;\n\n\tfor (int i=1;i<=n;++i)\n\n\t{\n\n\t\tcin>>a[i];\n\n\t\tmaxn=max(maxn,a[i]);\n\n\t\tminn=min(minn,a[i]);\n\n\t}\n\n\tfirst=minn;\n\n\tlast=maxn;\n\n\tans=minn;\n\n\twhile (first<=last)\n\n\t{\n\n\t\tmid=(first+last)/2;\n\n\t\tif (check(mid))\n\n\t\t{\n\n\t\t\tans=max(ans,mid);\n\n\t\t\tfirst=mid+1;\n\n\t\t}\n\n\t\telse\n\n\t\t\tlast=mid-1;\n\n\t}\n\n\tcout<<ans<<endl;\n\n\treturn 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002182"}
{"label": "pie_cpp_test_002504", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 11, "hidden_test_count": 1, "problem_id": "p03704", "reference_metric": "runtime_cpu_ns", "reference_value": 11, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002504.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002504", "task_path": "tasks/test/pie_cpp_test_002504.json", "visible_test_count": 1}, "problem_id": "p03704", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n63\n\nExpected output:\n2\n\n\nProgram:\n```cpp\n#include<stdio.h>\n\n#include<algorithm>\n\n#include<string.h>\n\n#include<string>\n\n#include<math.h>\n\n#include<stdlib.h>\n\n#include<time.h>\n\n#include<map>\n\n#include<queue>\n\n#include<set>\n\n#define fo(i,a,b) for(int i=a;i<=b;i++)\n\n#define fd(i,a,b) for(int i=a;i>=b;i--)\n\nusing namespace std;\n\nint d0[50],d1[50],m,mm;\n\nlong long ans,d,wei,te,ten[18];\n\n//81000 wei+3\n\nvoid dfs(int x,long long v,long long s){\n\n\t//if (abs(v)>d*10000) return;//12\n\n\tif (v<-d*15) return;//*105\n\n\tif (v>d*15&&v>(ten[m-x]-ten[x-1])*15) return;//*105\n\n\t//printf(\"%d %lld %lld\\n\",x,v,s);\n\n\tif (x>mm){//>m\n\n\t\tif (v==d){\n\n\t\t\t//printf(\"%d %lld %lld\\n\",x,v,s);\n\n\t\t\tif (m&1) ans+=s*10;else ans+=s;//(m>2)&&\n\n\t\t}\n\n\t\treturn;\n\n\t}\n\n\tif (x==1){\n\n\t\tfo(i,-9,8) dfs(x+1,v+i*(ten[m-x]-ten[x-1]),s*d1[i+20]);//m-i+1 i\n\n\t\treturn;\n\n\t}\n\n\tfo(i,-9,9) dfs(x+1,v+i*(ten[m-x]-ten[x-1]),s*d0[i+20]);\n\n}\n\ninline void sol(int wei){\n\n\tif (wei<=1) return;\n\n\tm=wei;mm=m/2;\n\n\tdfs(1,0,1);\n\n}\n\nint main(){\n\n\tscanf(\"%lld\",&d);\n\n\tif (d%9!=0){\n\n\t\tprintf(\"0\\n\");\n\n\t\treturn 0;\n\n\t}\n\n\tif (d==9){\n\n\t\tprintf(\"8\\n\");\n\n\t\treturn 0;\n\n\t}\n\n\tten[0]=1;fo(i,1,17) ten[i]=ten[i-1]*10;\n\n\tfo(i,0,9) fo(j,0,9) d0[i-j+20]++;\n\n\tfo(i,0,9) fo(j,1,9) d1[i-j+20]++;\n\n\tte=d;\n\n\twhile (te){\n\n\t\twei++;\n\n\t\tte/=10;\n\n\t}\n\n\t//printf(\"%lld\\n\",wei);\n\n\tfo(i,-2,9) sol(wei+i);//-8..8\n\n\tprintf(\"%lld\\n\",ans);\n\n\treturn 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002504"}
{"label": "pie_cpp_test_002507", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 14, "hidden_test_count": 1, "problem_id": "p03704", "reference_metric": "runtime_cpu_ns", "reference_value": 14, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002507.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002507", "task_path": "tasks/test/pie_cpp_test_002507.json", "visible_test_count": 1}, "problem_id": "p03704", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n63\n\nExpected output:\n2\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\n\n\ntypedef long long LL;\n\n\n\nconst int N = 25;\n\n\n\nint d;\n\nLL p[N];\n\nint sub1[N], sub2[N];      // sub1 not front, sub2 is front\n\n\n\nvector <LL> v;\n\n\n\nvoid dfs(int s, int e, vector <pair <LL, LL> > &w, LL val, LL cnt){\n\n    if (s == e){\n\n        w.push_back(make_pair(val, cnt));\n\n        return ;\n\n    }\n\n\n\n    for (int i = -9; i < 10; i++)                     // \u679a\u4e3e\u5dee\u503c\n\n        dfs(s + 1, e, w, val + i * v[s], cnt * (s ? sub1[i + 10] : sub2[i + 10]));\n\n}\n\n\n\nLL solve(int len){\n\n    v.clear();\n\n    for (int i = 0; i < len - 1 - i; i++) v.push_back(p[len - 1 - i] - p[i]);\n\n\n\n    vector <pair <LL, LL> > v1, v2;\n\n    dfs(0, (v.size() + 1) >> 1, v1, 0, 1);\n\n    dfs((v.size() + 1) >> 1, v.size(), v2, 0, 1);\n\n\n\n    LL ans = 0;\n\n    map <LL, LL> mp;\n\n    for (int i = 0; i < v2.size(); i++) mp[v2[i].first] += v2[i].second;\n\n    for (int i = 0; i < v1.size(); i++) ans += mp[d - v1[i].first] * v1[i].second;\n\n\n\n    if (len & 1) ans *= 10;\n\n    return ans;\n\n}\n\n\n\nint main(){\n\n    p[0] = 1;\n\n    for (int i = 1; i < 20; i++) p[i] = p[i - 1] * 10;\n\n    for (int i = 0; i < 10; i++)\n\n        for (int j = 0; j < 10; j++) sub1[i - j + 10]++;\n\n    for (int i = 0; i < 10; i++)\n\n        for (int j = 1; j < 10; j++) sub2[i - j + 10]++;\n\n\n\n    scanf(\"%d\", &d);\n\n    LL ans = 0;\n\n    for (int i = 2; i <= 18; i++) ans += solve(i);\n\n\n\n    printf(\"%lld\", ans);\n\n\n\n    return 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002507"}
{"label": "pie_cpp_test_002566", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 40, "hidden_test_count": 1, "problem_id": "p02274", "reference_metric": "runtime_cpu_ns", "reference_value": 40, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002566.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002566", "task_path": "tasks/test/pie_cpp_test_002566.json", "visible_test_count": 1}, "problem_id": "p02274", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5\n3 5 2 1 4\n\nExpected output:\n6\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <vector>\n\n#include <climits>\n\nusing namespace  std;\n\n\n\n#define llong long long\n\n\n\nvoid fnInput(vector<int> &rvnSort)\n\n{\n\n  int nMaxSiz;\n\n  cin >> nMaxSiz;\n\n\n\n  rvnSort.resize(nMaxSiz);\n\n  for (int i = 0; i < nMaxSiz; i++)\n\n    cin >> rvnSort[i];\n\n}\n\n\n\nvoid fnMerge(vector<int> &rvnSort, llong &rnInvCnt, int nLeft, int nMid, int nRight)\n\n{\n\n  vector<int> vnLeft, vnRight;\n\n  int nLeftSiz = nMid - nLeft;\n\n  int nRightSiz = nRight - nMid;\n\n  \n\n  vnLeft.resize(nLeftSiz + 1);\n\n  vnRight.resize(nRightSiz + 1);\n\n  for (int i = 0; i < nLeftSiz; i++)\n\n    vnLeft[i] = rvnSort[nLeft + i];\n\n  for (int i = 0; i < nRightSiz; i++)\n\n    vnRight[i] = rvnSort[nMid + i];\n\n\n\n  vnLeft[nLeftSiz] = INT_MAX;\n\n  vnRight[nRightSiz] = INT_MAX;\n\n\n\n  int i = 0, j = 0;\n\n  for (int n = nLeft; n < nRight; n++)\n\n    if (vnLeft[i] <= vnRight[j])\n\n      rvnSort[n] = vnLeft[i++];\n\n    else\n\n    {\n\n      rvnSort[n] = vnRight[j++];\n\n      if (vnLeft[i] != INT_MAX)\n\n        rnInvCnt += (nLeftSiz - i);\n\n      else;\n\n    }  \n\n}\n\n\n\nvoid fnMergeSort(vector<int> &rvnSort, llong &rnInvCnt, int nLeft, int nRight)\n\n{\n\n  if (nLeft + 1 < nRight)\n\n  {\n\n    int nMid = (nLeft + nRight) / 2;\n\n    fnMergeSort(rvnSort, rnInvCnt, nLeft, nMid);\n\n    fnMergeSort(rvnSort, rnInvCnt, nMid, nRight);\n\n    fnMerge(rvnSort, rnInvCnt, nLeft, nMid, nRight);\n\n  }\n\n}\n\n\n\nvoid fnResult(llong nInvCnt)\n\n{\n\n  cout << nInvCnt << endl; \n\n}\n\n\n\nint main()\n\n{\n\n  cin.tie(0);\n\n  ios::sync_with_stdio(false);\n\n  vector<int> vnSort;\n\n\n\n  fnInput(vnSort);\n\n\n\n  int nLeft = 0;\n\n  int nRight = vnSort.size();\n\n  llong nInvCnt = 0;\n\n  fnMergeSort(vnSort, nInvCnt, nLeft, nRight);\n\n\n\n  fnResult(nInvCnt);\n\n\n\n  return 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002566"}
{"label": "pie_cpp_test_002569", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 50, "hidden_test_count": 1, "problem_id": "p02274", "reference_metric": "runtime_cpu_ns", "reference_value": 50, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002569.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002569", "task_path": "tasks/test/pie_cpp_test_002569.json", "visible_test_count": 1}, "problem_id": "p02274", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5\n3 5 2 1 4\n\nExpected output:\n6\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n#define ll long long\n\n#define INF 999999999\n\n#define MOD 1000000007\n\n#define rep(i,n) for(int i=0;i<n;i++)\n\n\n\nusing namespace std;\n\n\n\ntypedef pair<int,int>P;\n\n\n\nconst int MAX_N = 200005;\n\n\n\nint a[MAX_N];\n\nint k[MAX_N];\n\nint bit[MAX_N+1],n;\n\nmap<int,int> mp;\n\n\n\n//i???????????\u00a7??????????\u00a8??????????(i???1????????????)\n\nint sum(int i)\n\n{\n\n\tint s = 0;\n\n\twhile(i>0){\n\n\t\ts += bit[i];\n\n\t\ti -= i & -i;\n\n\t}\n\n\treturn s;\n\n}\n\n//i???????????????x????????????(i???1????????????)\n\nvoid add(int i,int x)\n\n{\n\n\twhile(i <= n){\n\n\t\tbit[i] += x;\n\n\t\ti += i & -i;\n\n\t}\n\n}\n\n\n\nint main()\n\n{\n\n\tcin >> n;\n\n\trep(i,n){\n\n\t\tscanf(\"%d\",&a[i]);\n\n\t\tk[i] = a[i];\n\n\t\tmp[a[i]] = i;\n\n\t}\n\n\tsort(a,a+n);\n\n\trep(i,n){\n\n\t\tk[mp[a[i]]] = i+1;\n\n\t}\n\n\tll ans = 0;\n\n\trep(j,n){\n\n\t\tans += j - sum(k[j]);\n\n\t\tadd(k[j],1);\n\n\t}\n\n\tprintf(\"%lld\\n\",ans);\n\n\treturn 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002569"}
{"label": "pie_cpp_test_002574", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 40, "hidden_test_count": 1, "problem_id": "p02274", "reference_metric": "runtime_cpu_ns", "reference_value": 40, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002574.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002574", "task_path": "tasks/test/pie_cpp_test_002574.json", "visible_test_count": 1}, "problem_id": "p02274", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5\n3 5 2 1 4\n\nExpected output:\n6\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n\n\nusing namespace std;\n\n\n\n#define FOR(i,s,e) for((i)=(s);(i)<(int)(e);(i)++)\n\n#define REP(i,e) FOR(i,0,e)\n\n\n\n#define all(o) (o).begin(), (o).end()\n\n#define psb(x) push_back(x)\n\n#define mp(x,y) make_pair((x),(y))\n\n\n\ntypedef long long ll;\n\ntypedef pair<int, int> PII;\n\n\n\nconst double EPS = 1e-10;\n\nconst int INF = 1000000001;\n\nconst int N = 200000;\n\nint n;\n\nint a[N], L[N], R[N];\n\n\n\nll merge(int l, int m, int r) {\n\n  ll res = 0LL;\n\n  int i, j, k;\n\n  int nl = m - l;\n\n  int nr = r - m;\n\n  for (i=0; i<nl; i++)\n\n    L[i] = a[l + i];\n\n  for (i=0; i<nr; i++)\n\n    R[i] = a[m + i];\n\n  \n\n  L[nl] = R[nr] = INF;\n\n  \n\n/*\n\n  k = l;\n\n  i = j = 0;\n\n  while (i<nl || j<nr) {\n\n    if (i==nl)\n\n      a[k++] = R[j++]; \n\n    else if (j==nr)\n\n      a[k++] = L[i++];\n\n    else if (L[i] <= R[j])\n\n      a[k++] = L[i++];\n\n    else {\n\n      a[k++] = R[j++]; \n\n      res += nl - i;\n\n    }\n\n  }\n\n*/\n\n  i = j = 0;\n\n  for (k=l; k<r; k++) {\n\n    if (L[i] <= R[j]) {\n\n      a[k] = L[i++];\n\n//      res += j;\n\n    } else {\n\n      res += (ll)(nl - i);\n\n      a[k] = R[j++];\n\n    }\n\n  }\n\n\n\n  return res;\n\n}\n\n\n\nll merge_sort(int l, int r) {\n\n  ll res = 0;\n\n  if (l+1<r) {\n\n    int m = (l+r)/2;\n\n    res = merge_sort(l, m);\n\n    res += merge_sort(m, r);\n\n    res += merge(l, m, r);\n\n  }\n\n  return res;\n\n}\n\n\n\nint main() {\n\n  scanf(\"%d \", &n);\n\n  for (int i=0; i<n; i++)\n\n    scanf(\"%d \", a+i);\n\n\n\n  printf(\"%lld\\n\", merge_sort(0, n));\n\n\n\n  return 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002574"}
{"label": "pie_cpp_test_002580", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 80, "hidden_test_count": 1, "problem_id": "p02274", "reference_metric": "runtime_cpu_ns", "reference_value": 80, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002580.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002580", "task_path": "tasks/test/pie_cpp_test_002580.json", "visible_test_count": 1}, "problem_id": "p02274", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5\n3 5 2 1 4\n\nExpected output:\n6\n\n\nProgram:\n```cpp\n#include<iostream>\n\n#include<queue>\n\nusing namespace std;\n\n\n\nlong merge(int A[], int left, int right){\n\n    if (left == right) return 0;\n\n    int mid = (left + right) / 2;\n\n    long cnt = 0;\n\n    cnt += merge(A, left, mid);\n\n    cnt += merge(A, mid + 1, right);\n\n\n\n    queue<int> a;\n\n    for (int i = left; i <= mid; i++) {\n\n        a.push(A[i]);\n\n    }\n\n    a.push(-1);\n\n    queue<int> b;\n\n    for (int i = mid + 1; i <= right; i++) {\n\n        b.push(A[i]);\n\n    }\n\n    b.push(-1);\n\n\n\n    for (int i = left; i <= right; i++) {\n\n        if (a.front() > b.front()) {\n\n            A[i] = a.front();\n\n            cnt += b.size() - 1;\n\n            a.pop();\n\n        } else {\n\n            A[i] = b.front();\n\n            b.pop();\n\n        }\n\n    }\n\n    return cnt;\n\n\n\n}\n\n\n\nint main(){\n\n    int N;\n\n    cin >> N;\n\n\n\n    int A[N];\n\n    for (int i = 0; i < N; i++) {\n\n        cin >> A[i];\n\n    }\n\n    long cnt = merge(A, 0, N - 1);\n\n    cout << cnt << endl;\n\n\n\n    return 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002580"}
{"label": "pie_cpp_test_002589", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 40, "hidden_test_count": 1, "problem_id": "p02274", "reference_metric": "runtime_cpu_ns", "reference_value": 40, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002589.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002589", "task_path": "tasks/test/pie_cpp_test_002589.json", "visible_test_count": 1}, "problem_id": "p02274", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5\n3 5 2 1 4\n\nExpected output:\n6\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <algorithm>\n\nusing namespace std;\n\nint n, a[200000], b[200000], bit[262145];\n\nvoid add(int i, int x) {\n\n\twhile (i <= n) bit[i] += x, i += i & -i;\n\n}\n\nint sum(int i) {\n\n\tint ret = 0;\n\n\twhile (i > 0) ret += bit[i], i -= i & -i;\n\n\treturn ret;\n\n}\n\nint sum(int l, int r) {\n\n\treturn sum(r - 1) - sum(l - 1);\n\n}\n\nint main() {\n\n\tscanf(\"%d\", &n);\n\n\tfor(int i = 0; i < n; i++) scanf(\"%d\", &a[i]), b[i] = a[i];\n\n\tsort(b, b + n);\n\n\tlong long ret = 0;\n\n\tfor(int i = 0; i < n; i++) {\n\n\t\tint ptr = lower_bound(b, b + n, a[i]) - b; add(ptr + 1, 1);\n\n \t\tret += sum(ptr + 2, n + 1);\n\n\t}\n\n\tprintf(\"%lld\\n\", ret);\n\n\treturn 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002589"}
{"label": "pie_cpp_test_002599", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 10, "hidden_test_count": 1, "problem_id": "p02276", "reference_metric": "runtime_cpu_ns", "reference_value": 10, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002599.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002599", "task_path": "tasks/test/pie_cpp_test_002599.json", "visible_test_count": 1}, "problem_id": "p02276", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n12\n13 19 9 5 12 8 7 4 21 2 6 11\n\nExpected output:\n9 5 8 7 4 2 6 [11] 21 13 19 12\n\n\nProgram:\n```cpp\n#include <iostream>\n\n\n\nusing namespace std;\n\nint partition(int A[], int p, int r);\n\nvoid swap(int &a, int &b);\n\nint main(void)\n\n{\n\n\tint n, i;\n\n\tcin >> n;\n\n\tint A[n];\n\n\tfor (i = 0; i < n; i++)\n\n\t\tcin >> A[i];\n\n\tint flag = partition(A, 0, n-1);\n\n\tfor (i = 0; i < n; i++)\n\n\t{\n\n\t\tif (i == flag)\n\n\t\t\tcout << \"[\" << A[i] << \"] \";\n\n\t\telse if (i != n - 1)\n\n\t\t\tcout << A[i] << \" \";\n\n\t\telse\n\n\t\t\tcout << A[i];\n\n\t}\n\n\tcout << endl;\n\n\treturn 0;\n\n}\n\n\n\nint partition(int A[], int p, int r)\n\n{\n\n\tint x = A[r];\n\n\tint i = p - 1;\n\n\tint j;\n\n\tfor (j = p; j < r; j++)\n\n\t{\n\n\t\tif (A[j] <= x)\n\n\t\t{\n\n\t\t\ti++;\n\n\t\t\tswap(A[i], A[j]);\n\n\t\t}\n\n\t}\n\n\tswap(A[i+1], A[r]);\n\n\treturn i+1;\n\n}\n\nvoid swap(int &a, int &b)\n\n{\n\n\tint temp = a;\n\n\ta = b;\n\n\tb = temp;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002599"}
{"label": "pie_cpp_test_002913", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 10, "hidden_test_count": 1, "problem_id": "p00620", "reference_metric": "runtime_cpu_ns", "reference_value": 10, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_002913.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_002913", "task_path": "tasks/test/pie_cpp_test_002913.json", "visible_test_count": 1}, "problem_id": "p00620", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3\n-3 1 1\n2 -4 1\n2 1 -1\n3\n-4 1 1\n1 1 -6\n1 -5 3\n4\n-8 6 -2 1\n2 -7 -2 1\n1 -1 1 1\n1 1 1 -5\n6\n2 2 3 -7 3 2\n1 -10 1 1 3 2\n2 6 5 2 -6 1\n3 4 -23 2 2 5\n3 3 -6 2 3 7\n-7 2 3 2 -5 -13\n6\n2 2 3 -7 3 2\n1 -10 1 1 3 2\n2 6 5 2 -6 1\n3 4 -23 2 2 5\n3 3 -6 2 3 7\n-7 2 3 2 -5 -12\n0\n\nExpected output:\nYES\nNO\nNO\nYES\nNO\n\n\nProgram:\n```cpp\n#include<stdio.h>\n\n#include<stdlib.h>\n\n#include<string.h>\n\n#include<vector>\n\nstruct P{int x,y;P(int x,int y):x(x),y(y){}};\n\n\n\nint num[10][10];\n\nbool visited[10][10];\n\nstd::vector<P>v;\n\n\n\nconst int dx[] = {1,0,-1,0};\n\nconst int dy[] = {0,1,0,-1};\n\n\n\nbool BackTrack(int x,int y,int index,int rest)\n\n{\n\n\tif(rest==0)\n\n\t{\n\n\t\tif(index==v.size()-1)\n\n\t\t\treturn true;\n\n\t\t++index;\n\n\t\tx=v[index].x;\n\n\t\ty=v[index].y;\n\n\t\trest = -num[y][x];\n\n\t\treturn BackTrack(x,y,index,rest);\n\n\t}\n\n\tbool res = false;\n\n\tfor(int i=0; i<4; ++i)\n\n\t{\n\n\t\tint nx = x+dx[i];\n\n\t\tint ny = y+dy[i];\n\n\t\tif(visited[ny][nx])continue;\n\n\t\tvisited[ny][nx] = true;\n\n\n\n\t\tres = res || BackTrack(nx,ny,index,rest-num[ny][nx]);\n\n\n\n\t\tvisited[ny][nx] = false;\n\n\t}\n\n\treturn res;\n\n}\n\n\n\nint main()\n\n{\n\n\tint n,i,j,t;\n\n\twhile(scanf(\"%d\",&n),n)\n\n\t{\n\n\t\tv.clear();\n\n\t\tmemset(visited,1,sizeof(visited));\n\n\n\n\t\tint check = 0;\n\n\t\tfor(i=1; i<=n; ++i)\n\n\t\t{\n\n\t\t\tfor(j=1; j<=n; ++j)\n\n\t\t\t{\n\n\t\t\t\tscanf(\"%d\",&t);\n\n\t\t\t\tnum[i][j]=t;\n\n\t\t\t\tif(t<0)\n\n\t\t\t\t{\n\n\t\t\t\t\tv.push_back(P(j,i));\n\n\t\t\t\t\tvisited[i][j]=true;\n\n\t\t\t\t}\n\n\t\t\t\telse\n\n\t\t\t\t{\n\n\t\t\t\t\tvisited[i][j]=false;\n\n\t\t\t\t}\n\n\t\t\t\tcheck += t;\n\n\t\t\t}\n\n\t\t}\n\n\n\n\t\tint x=v[0].x;\n\n\t\tint y=v[0].y;\n\n\t\tputs(check==0&&BackTrack(x,y,0,-num[y][x]) ? \"YES\" : \"NO\");\n\n\t}\n\n\treturn 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_002913"}
{"label": "pie_cpp_test_003246", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 370, "hidden_test_count": 1, "problem_id": "p01338", "reference_metric": "runtime_cpu_ns", "reference_value": 370, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003246.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003246", "task_path": "tasks/test/pie_cpp_test_003246.json", "visible_test_count": 1}, "problem_id": "p01338", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5\n\n1 1 0 3 3\n1 1 0 3 3\n0 0 0 0 0\n2 2 0 4 4\n2 2 0 4 4\n\n1 1 1 0 0\n1 1 1 1 0\n1 0 1 1 0\n0 0 1 1 1\n1 1 1 1 1\n\n0 0 0 0 0\n0 0 0 0 0\n0 0 0 0 0\n0 0 0 0 0\n0 0 0 0 0\n\n4 3 4 3 4\n3 4 3 4 3\n4 3 4 3 4\n3 4 3 4 3\n4 3 4 3 4\n\n2 2 2 2 2\n0 0 0 2 0\n2 2 0 2 0\n2 2 0 2 0\n0 0 0 2 0\n\nExpected output:\n1280\n1420\n0\n1920\n1020\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <sstream>\n\n#include <iomanip>\n\n#include <algorithm>\n\n#include <cmath>\n\n#include <string>\n\n#include <vector>\n\n#include <list>\n\n#include <queue>\n\n#include <stack>\n\n#include <set>\n\n#include <map>\n\n#include <bitset>\n\n#include <numeric>\n\n#include <climits>\n\n#include <cfloat>\n\nusing namespace std;\n\n\n\nint toInt(const vector<int>& a){\n\n    int ret = 0;\n\n    for(int i=0; i<5; ++i)\n\n        ret |= max(a[i], 0) << (i*2);\n\n    return ret;\n\n}\n\n\n\nvector<int> toVector(int a){\n\n    vector<int> ret(5);\n\n    for(int i=0; i<5; ++i){\n\n        ret[i] = a & 3;\n\n        a >>= 2;\n\n    }\n\n    return ret;\n\n}\n\n\n\nint getScore(vector<int>& a, int b){\n\n    int ret = 0;\n\n    for(int i=0; i<5; ++i){\n\n        if(a[i] != -1 && (b & 3))\n\n            ret += 50 + 10 * (b & 3);\n\n        b >>= 2;\n\n    }\n\n    return ret;\n\n}\n\n\n\nint main()\n\n{\n\n    int n;\n\n    cin >> n;\n\n\n\n    while(--n >= 0){\n\n        vector<vector<int> > grade(5, vector<int>(5));\n\n        for(int i=0; i<5; ++i){\n\n            for(int j=0; j<5; ++j){\n\n                cin >> grade[i][j];\n\n                -- grade[i][j];\n\n            }\n\n        }\n\n\n\n        vector<int> dp(1<<10, -1);\n\n        dp[toInt(grade[0])] = 0;\n\n        for(int i=0; i<4; ++i){\n\n            vector<int> nextDp(1<<10, -1);\n\n            for(int j=0; j<(1<<10); ++j){\n\n                if(dp[j] == -1)\n\n                    continue;\n\n                for(int k=0; k<(1<<8); ++k){\n\n                    vector<int> a = toVector(j);\n\n                    vector<int> b = grade[i+1];\n\n                    for(int l=0; l<4; ++l){\n\n                        (a[l]   += (k>>(l*2)) & 3) %= 4;\n\n                        (a[l+1] += (k>>(l*2)) & 3) %= 4;\n\n                        (b[l]   += (k>>(l*2)) & 3) %= 4;\n\n                        (b[l+1] += (k>>(l*2)) & 3) %= 4;\n\n                    }\n\n                    int a1 = toInt(a);\n\n                    int b1 = toInt(b);\n\n                    nextDp[b1] = max(nextDp[b1], dp[j] + getScore(grade[i], a1)); \n\n                }\n\n            }\n\n            dp.swap(nextDp);\n\n        }\n\n\n\n        int ret = 0;\n\n        for(int i=0; i<(1<<10); ++i){\n\n            ret = max(ret, dp[i] + getScore(grade[4], i));\n\n        }\n\n        cout << ret << endl;\n\n    }\n\n\n\n    return 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003246"}
{"label": "pie_cpp_test_003467", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 34, "hidden_test_count": 1, "problem_id": "p03669", "reference_metric": "runtime_cpu_ns", "reference_value": 34, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003467.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003467", "task_path": "tasks/test/pie_cpp_test_003467.json", "visible_test_count": 1}, "problem_id": "p03669", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 4\n1 1 0 0\n2 2 0 1\n3 3 1 0\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include<iostream>\n\n#include<algorithm>\n\n#include<cmath>\n\n#include<stdio.h>\n\nusing namespace std;\n\nint n,m;\n\nint fa[2000003],vis[2000003],D[2000003],C[2000003];\n\ninline int find(int x){\n\n\tif(fa[x]==x){\n\n\t\treturn fa[x];\n\n\t}else{\n\n\t\treturn fa[x]=find(fa[x]);\n\n\t}\n\n}\n\nint main(){\n\n\tcin>>n>>m;\n\n    for(int i=1;i<=1000;i++){\n\n    \tfa[i]=i;\n\n\t}\n\n    for(int i=1;i<=n;i++){\n\n        int x,y,a,b,c,d;\n\n        cin>>a>>b>>c>>d;\n\n        x=!c?a+500:-c+500;\n\n        y=!d?-b+500:d+500;\n\n        fa[find(x)]=find(y);\n\n        D[x]++,D[y]--;\n\n\t\tvis[x]=1;\n\n    }\n\n    int flag=1;\n\n    for(int i=1;i<500;i++){\n\n    \tif(D[i]>0){\n\n\t\t\tputs(\"NO\");\n\n    \t\treturn 0;\n\n\t\t}\n\n\t}\n\n    for(int i=501;i<=1000;i++){\n\n    \tif(D[i]<0){\n\n    \t\tputs(\"NO\");\n\n    \t\treturn 0;\n\n\t\t}\n\n\t}\n\n    for(int i=1;i<=1000;i++){\n\n    \tvis[find(i)]|=vis[i];\n\n\t}\n\n    for(int i=1;i<=1000;i++){\n\n\t\tif(D[i]!=0){\n\n\t\t\tC[find(i)]=1;\n\n\t\t}\n\n\t}\n\n    for(int i=1;i<=1000;i++){\n\n    \tif(fa[i]==i&&!C[i]&&vis[i]){\n\n    \t\tputs(\"NO\");\n\n    \t\treturn 0;\n\n\t\t}\n\n\t}\n\n\tcout<<\"YES\"<<endl;\n\n    return 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003467"}
{"label": "pie_cpp_test_003492", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 13, "hidden_test_count": 1, "problem_id": "p03669", "reference_metric": "runtime_cpu_ns", "reference_value": 13, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003492.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003492", "task_path": "tasks/test/pie_cpp_test_003492.json", "visible_test_count": 1}, "problem_id": "p03669", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 4\n1 1 0 0\n2 2 0 1\n3 3 1 0\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include<bits/stdc++.h>\n\nusing namespace std;\n\ninline void read(int &x)\n\n{\n\n\tchar c=getchar();\n\n\tx=0;\n\n\twhile (c>'9'||c<'0')\n\n\t\tc=getchar();\n\n\twhile (c>='0'&&c<='9')\n\n\t{\n\n\t\tx=x*10+c-'0';\n\n\t\tc=getchar();\n\n\t}\n\n}\n\nconst int N=10005;\n\nint n,m,fa[N],v[N],f[N],g[N],x,y,a,b,c,d,flag;\n\ninline int gf(int x)\n\n{\n\n\treturn fa[x]==x?x:fa[x]=gf(fa[x]);\n\n}\n\nint main()\n\n{\n\n\tread(n);\n\n\tread(m);\n\n\tfor (int i=1;i<=1000;++i)\n\n\t\tfa[i]=i;\n\n\tfor (int i=1;i<=n;++i)\n\n\t{\n\n\t\tread(a);\n\n\t\tread(b);\n\n\t\tread(c);\n\n\t\tread(d);\n\n\t\tif (c)\n\n\t\t\tx=500-c;\n\n\t\telse\n\n\t\t\tx=500+a;\n\n\t\tif (d)\n\n\t\t\ty=500+d;\n\n\t\telse\n\n\t\t\ty=500-b;\n\n\t\tfa[gf(x)]=gf(y);\n\n\t\t++f[x];\n\n\t\t--f[y];\n\n\t\tv[x]=1;\n\n\t}\n\n\tflag=1;\n\n\tfor (int i=1;i<500;++i)\n\n\t\tif (f[i]>0)\n\n\t\t\tflag=0;\n\n\tfor (int i=501;i<=1000;++i)\n\n\t\tif (f[i]<0)\n\n\t\t\tflag=0;\n\n\tfor (int i=1;i<=1000;++i)\n\n\t\tv[gf(i)]|=v[i];\n\n\tfor (int i=1;i<=1000;++i)\n\n\t\tif (f[i])\n\n\t\t\tg[gf(i)]=1;\n\n\tfor (int i=1;i<=1000;++i)\n\n\t\tif (fa[i]==i&&!g[i]&&v[i])\n\n\t\t\tflag=0;\n\n\tputs(flag?\"YES\":\"NO\");\n\n\treturn 0;\n\n\n\n\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003492"}
{"label": "pie_cpp_test_003570", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 91, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 91, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003570.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003570", "task_path": "tasks/test/pie_cpp_test_003570.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include <cstdio>\n\n#include <cstring>\n\n#include <algorithm>\n\n\n\nint Max[550000], cMax[550000]; \n\nint n, a[550000], Ans[550000];\n\nint o[4];\n\n\n\nint main()\n\n{\n\n\tscanf(\"%d\", &n);\n\n\tfor(int i = 0; i < (1 << n); i++) scanf(\"%d\", &a[i]);\n\n\tmemset(Max, -1, sizeof(Max));\n\n\tmemset(cMax, -1, sizeof(cMax));\n\n\tMax[0] = a[0];\n\n\tif(a[1] > a[0]) Max[1] = a[1], cMax[1] = a[0];\n\n\telse Max[1] = a[0], cMax[1] = a[1];\n\n\tAns[1] = a[0] + a[1];\n\n\tprintf(\"%d\\n\", a[0] + a[1]);\n\n\tfor(int i = 2; i < (1 << n); i++)\n\n\t{\n\n\t\tint S = 0, b;\n\n\t\tfor(int j = 17; j >= 0; j--)\n\n\t\t{\n\n\t\t\tif((i >> j) & 1)\n\n\t\t\t{\n\n\t\t\t\tS = i ^ (1 << j);\n\n\t\t\t\tb = j;\n\n\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\tb = 1 << b;\n\n\t\tfor(int j = S; ; j = ((j - 1) & S))\n\n\t\t{\n\n\t\t\tint u = a[b ^ j];\n\n\t\t\tif(u > Max[i]) cMax[i] = Max[i], Max[i] = u;\n\n\t\t\telse if(u > cMax[i]) cMax[i] = u;\n\n\t\t\tif(j == 0) break;\n\n\t\t}\n\n\t\to[0] = Max[i]; o[1] = cMax[i]; o[2] = Max[S]; o[3] = cMax[S];\n\n\t\tstd::sort(o, o + 4);\n\n\t\tMax[i] = o[3]; cMax[i] = o[2];\n\n\t\tif(cMax[i] == -1)\n\n\t\t{\n\n\t\t\tAns[i] = Ans[i - 1];\n\n\t\t\tprintf(\"%d\\n\", Ans[i]);\n\n\t\t}\n\n\t\telse\n\n\t\t{\n\n\t\t\tAns[i] = std::max(Max[i] + cMax[i], Ans[i - 1]);\n\n\t\t\tprintf(\"%d\\n\", Ans[i]);\n\n\t\t}\n\n\t}\n\n\treturn 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003570"}
{"label": "pie_cpp_test_003580", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 195, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 195, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003580.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003580", "task_path": "tasks/test/pie_cpp_test_003580.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include<bits/stdc++.h>\n\nusing namespace std;\n\n#define ll long long\n\n#define fi first\n\n#define se second\n\n#define IOS ios::sync_with_stdio(0),cin.tie(0),cout.tie(0)\n\n#define endl '\\n'\n\n#define ld long double\n\n#define mid (l+r)/2\n\ntypedef pair<int,int> pii;\n\nconst int maxn=(1<<18)+5;\n\nint a[maxn];\n\nint ans[maxn],mx[maxn];\n\nint tot;\n\nvoid calc(int id,int n)\n\n{\n\n    for(int i=id;i<=n;i=((i+1)|id))\n\n    {\n\n        ans[i]=max(ans[i],mx[i]+a[id]);\n\n        mx[i]=max(mx[i],a[id]);\n\n        ++tot;\n\n    }\n\n}\n\nint main()\n\n{\n\n    #ifdef local\n\n    freopen(\"in.txt\",\"r\",stdin);\n\n    #endif\n\n    IOS;\n\n    int n;\n\n    cin>>n;\n\n    int m=(1<<n)-1;\n\n    for(int i=0;i<=m;i++) cin>>a[i];\n\n    for(int i=0;i<=m;i++) calc(i,m);\n\n    for(int i=1;i<=m;i++)\n\n    {\n\n        ans[i]=max(ans[i],ans[i-1]);\n\n        cout<<ans[i]<<endl;\n\n    }\n\n    //cout<<tot<<endl;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003580"}
{"label": "pie_cpp_test_003581", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 84, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 84, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003581.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003581", "task_path": "tasks/test/pie_cpp_test_003581.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n\n\nusing namespace std;\n\n\n\nconst int maxn = (1<<18) + 5;\n\nint n;\n\nint a[maxn];\n\nint x[maxn][2];\n\nint num[maxn][2];\n\n\n\nint main() {\n\n\tcin >> n;\n\n\tfor (int i = 0; i < (1<<n); ++i)\n\n\t\tcin >> a[i];\n\n\tmemset(x, 0, sizeof(x));\n\n\tmemset(num, 0, sizeof(num));\n\n\tfor (int i = 1; i < (1<<n); i <<= 1)\n\n\t\tif (x[i][0] < a[0]) {\n\n\t\t\tx[i][0] = a[0];\n\n\t\t\tnum[i][0] = 0;\n\n\t\t}\n\n\t\telse if (x[i][1] < a[0]){\n\n\t\t\tx[i][1] = a[0];\n\n\t\t\tnum[i][1] = 0;\n\n\t\t}\n\n\tint last = 0;\n\n\tfor (int i = 1; i < (1<<n); ++i) {\n\n\t\tif (a[i] > x[i][0]) {\n\n\t\t\tswap(x[i][0], x[i][1]);\n\n\t\t\tswap(num[i][0], num[i][1]);\n\n\t\t\tx[i][0] = a[i];\n\n\t\t\tnum[i][0] = i;\n\n\t\t}\n\n\t\telse if (a[i] > x[i][1]) {\n\n\t\t\tx[i][1] = a[i];\n\n\t\t\tnum[i][1] = i;\n\n\t\t}\n\n\t\tlast = max(last, x[i][0]+x[i][1]);\n\n\t\tprintf(\"%d\\n\", last);\n\n\t\tfor (int j = 1; j < (1<<n); j <<= 1) {\n\n\t\t\tif (x[i|j][0] < x[i][0]) {\n\n\t\t\t\tswap(x[i|j][0], x[i|j][1]);\n\n\t\t\t\tswap(num[i|j][0], num[i|j][1]);\n\n\t\t\t\tx[i|j][0] = x[i][0];\n\n\t\t\t\tnum[i|j][0] = num[i][0];\n\n\t\t\t\tif (x[i|j][1] < x[i][1] && num[i|j][1] != num[i][1]) {\n\n\t\t\t\t\tx[i|j][1] = x[i][1];\n\n\t\t\t\t\tnum[i|j][1] = num[i][1];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\telse if (x[i|j][1] < x[i][0] && num[i|j][0] != num[i][0]) {\n\n\t\t\t\tx[i|j][1] = x[i][0];\n\n\t\t\t\tnum[i|j][1] = num[i][0];\n\n\t\t\t}\n\n\t\t\telse if (x[i|j][1] < x[i][1]) {\n\n\t\t\t\tx[i|j][1] = x[i][1];\n\n\t\t\t\tnum[i|j][1] = num[i][1];\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\treturn 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003581"}
{"label": "pie_cpp_test_003593", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 66, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 66, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003593.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003593", "task_path": "tasks/test/pie_cpp_test_003593.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\nusing ll = long long;\n\n\n\nint main() {\n\n    ios_base::sync_with_stdio(false);\n\n    cin.tie(0);\n\n\n\n    int N;\n\n    cin >> N;\n\n    vector<int> A(1 << N);\n\n    for (int i = 0; i < 1 << N; i++) cin >> A[i];\n\n    vector<int> first(1 << N), second(1 << N);\n\n    for (int i = 0; i < 1 << N; i++) {\n\n        for (int S = ~i & ((1 << N) - 1); S > 0; S = (S - 1) & ~i) {\n\n            if (first[S | i] < A[i]) {\n\n                second[S | i] = first[S | i];\n\n                first[S | i] = A[i];\n\n            } else if (second[S | i] < A[i]) {\n\n                second[S | i] = A[i];\n\n            }\n\n        }\n\n        if (first[i] < A[i]) {\n\n            second[i] = first[i];\n\n            first[i] = A[i];\n\n        } else if (second[i] < A[i]) {\n\n            second[i] = A[i];\n\n        }\n\n    }\n\n    int ans = 0;\n\n    for (int K = 1; K < 1 << N; K++) {\n\n        ans = max(ans, first[K] + second[K]);\n\n        cout << ans << '\\n';\n\n    }\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003593"}
{"label": "pie_cpp_test_003594", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 688, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 688, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003594.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003594", "task_path": "tasks/test/pie_cpp_test_003594.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n//Code by 27.\n\n#include<cstdio>\n\n#include<iostream>\n\n#include<algorithm>\n\n#include<string>\n\n#include<math.h>\n\n#include<vector>\n\n#include<queue>\n\n#include<map>\n\n#include<stack>\n\n#include<fstream>\n\n#include<stdlib.h>\n\n#include<set>\n\n#include<climits>\n\n#include<cmath>  \n\n//#include<memory.h> \n\n#include<sstream>\n\n#include<time.h>\n\n#include <iomanip>\n\nusing namespace std;\n\nconst unsigned long long BIGEST=1000000000000000000+1000000000000000000;\n\nconst long long BIGER=1000000000000000000;\n\nconst int BIG=1000000000;\n\nconst int MOD=19260817;\n\n/*\n\nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo^ =ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\\`  ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo,   =/ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo`    \\ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\nooooooooooooooooooooooooooooooooooooooooooooooooooooooo[o\\oo\\oo`  ,  ,o\\o/\\\\ooo`ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooo//\\           \\.          =\\ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooo\\`   ,\\`,ooo/]`*    ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooo/oo`   .\\ooo\\[   ,/\\ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\\^  =\\\\o/  ,ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo  =/`  =^  =oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo^            oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo/    .oo/`    =ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooo^o=`  ,\\oooo/o^   ]^ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo.]o/\\oooooooo,.//ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo^ [oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo  ,/ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo/`  ,\\/oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\nooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\\//oooooooooooooo,   =^/oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooo/`,`o\\/ooooooooooooo`   \\/ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooo/\\\\        ,,\\/\\oooooooo\\^   ,\\oooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooo/^             `oooooooooo^    \\ooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\nooooooooooooooooooooooooooooooooooooooooooooooooo\\\\/             /\\\\ooooooooooo^    ,o\\=ooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooo`            /oooooooooooooooo^    ,,^ooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooo/ooo/            =o\\ooooooooooooooooo`     ^ooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooo/               ,\\oooooooooooooooo^\\     ,ooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooo`                ,\\[]/oooooooooooooo      ,/ooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooo/\\        ]`       ,`\\oooooooooooooo^      oooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooo\\`     \\o\\o        \\ooooooooooooooo      =\\oooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooo/o=` /o/oooo^        \\/\\ooooooooooo      ,ooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo/o         ooooooooo\\o/  n     oooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo/\\        .o\\ooooooo/       ooooooooooooooooooooooooooooooooooooooooooooooooooo\n\nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo`        \\/ooo\\o/        ooooooooooooooooooooooooooooooooooooooooooooooooooo\n\nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\\/         \\ooo^^       ,ooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo^        ./\\/        oooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\\/`        .        ,oo^ooooooooooooooooooooooooooooooooooooooooooooooooo\n\nooooooooooooooooooooooooooooooooooooooooooooooooooooo.  ,ooooooooooooooo                ooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\nooooooooooooooooooooooooooooooooooooooooooooooooo^        `/oooooooooooo/^             oooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooooo/\\oo``           \\/[ooo[ooooo^            ooooooooooooooooooooooooooooooooooooooooooooooooooooooo \n\nooooooooooooooooooooooooooooooooooooooooooooo\\,        =.        .[[[                 ,\\ooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooo/o/o.       oooo\\o`                             \\o/\\ooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooo/o.        ]oooooooo\\                            ,ooooooooooooooooooooooooooooooooooooooooooooooooooo\n\nooooooooooooooooooooooooooooooooooooooooo`        =ooooooooooooo`            ,oo/\\         \\ooooooooooooooooooooooooooooooooooooooooooooooooo\n\nooooooooooooooooooooooooooooooooooooooooo        =oooooooooooooooooo/oooooooooooo\\/.       `ooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooo^^      ,ooooooooooooooooooooooooooooooooooo\\    ,ooooooooooooooooooooooooooooooooooooooooooooooooooo\n\noooooooooooooooooooooooooooooooooooooooooo\\  `,/ooooooooooooooooooooooooooooooooooooo/^ o]o/ooooooooooooooooooooooooooooooooooooooooooooooooo\n\nooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo\n\n*/\n\nint a[300001]; \n\nint main()\n\n{\n\n\tint n;\n\n\tscanf(\"%d\",&n);\n\n\tfor(int i=0;i<(1<<n);i++)\n\n\t{\n\n\t\tscanf(\"%d\",&a[i]);\n\n\t}\n\n\tint mx=0,mx2=0;\n\n\tint MX=-BIG;\n\n\tfor(int i=1;i<(1<<n);i++)\n\n\t{\n\n\t\t\n\n\t\tmx=300000;\n\n\t\tmx2=300000;\n\n\t\t\n\n\t\tfor(int j=i;j!=0;j=(j-1)&i)\n\n\t\t{\n\n\t\t\t//cout<<i<<\" \"<<j<<endl;\n\n\t\t\tif(a[j]>a[mx])\n\n\t\t\t{\n\n\t\t\t\tmx2=mx;\n\n\t\t\t\tmx=j;\n\n\t\t\t}\n\n\t\t\telse if(a[j]>a[mx2]&&j!=mx)\n\n\t\t\t{\n\n\t\t\t\tmx2=j;\n\n\t\t\t}\n\n\t\t}\n\n\t\tif(a[0]>a[mx])\n\n\t\t{\n\n\t\t\tmx2=mx;\n\n\t\t\tmx=0;\n\n\t\t}\n\n\t\telse if(a[0]>a[mx2]&&0!=mx)\n\n\t\t{\n\n\t\t\tmx2=0;\n\n\t\t}\n\n\t\tMX=max(MX,a[mx]+a[mx2]);\n\n\t\tcout<<MX<<endl;\n\n\t\t//k=(k-1)&k;\n\n\t}\n\n\treturn 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003594"}
{"label": "pie_cpp_test_003606", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 121, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 121, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003606.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003606", "task_path": "tasks/test/pie_cpp_test_003606.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include<bits/stdc++.h>\n\nusing namespace std;\n\n#define int long long\n\n#define REP(i,m,n) for(int i=(m);i<(n);i++)\n\n#define rep(i,n) REP(i,0,n)\n\n#define pb push_back\n\n#define all(a) a.begin(),a.end()\n\n#define rall(c) (c).rbegin(),(c).rend()\n\n#define mp make_pair\n\n#define endl '\\n'\n\n#define vec vector<ll>\n\n#define mat vector<vector<ll> >\n\n#define fi first\n\n#define se second\n\ntypedef long long ll;\n\ntypedef pair<ll,ll> pll;\n\ntypedef long double ld;\n\nconst ll inf=1e9+7;\n\nconst ll mod=998244353;\n\n\n\nsigned main(){\n\n    ll n;cin>>n;\n\n    vector<ll>a(1LL<<n);\n\n    rep(i,1LL<<n)cin>>a[i];\n\n    vector<ll>ma1(1LL<<n);\n\n    vector<ll>ma2(1LL<<n);\n\n    REP(i,1,1LL<<n){\n\n        for(int j=i;;j=(j-1)&i){\n\n            if(a[j]>=ma1[i]){\n\n                ma2[i]=ma1[i];\n\n                ma1[i]=a[j];\n\n            }else if(a[j]>=ma2[i]){\n\n                ma2[i]=a[j];\n\n            }\n\n            if(j==0)break;\n\n        }\n\n    }\n\n    ll ans=0;\n\n    REP(i,1,1LL<<n){\n\n        ans=max(ans,ma1[i]+ma2[i]);\n\n        cout<<ans<<endl;\n\n    }\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003606"}
{"label": "pie_cpp_test_003618", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 64, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 64, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003618.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003618", "task_path": "tasks/test/pie_cpp_test_003618.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\n\n\nvoid add(pair<int, int> &p, int cur) {\n\n    if (cur >= p.first) {\n\n        swap(p.first, p.second);\n\n        p.first = cur;\n\n    } else if (cur > p.second) {\n\n        p.second = cur;\n\n    }\n\n    return;\n\n}\n\n\n\nint v[1<<18];\n\nint ans[1<<18];\n\n\n\nint main() {\n\n    cin.tie(nullptr);\n\n    ios::sync_with_stdio(false);\n\n    int n; cin >> n;\n\n    for (int i = 0; i < (1 << n); i++) cin >> v[i];\n\n    for (int bit = 1; bit < (1 << n); bit++) {\n\n        pair<int, int> w = {0, 0};\n\n        for (int i = bit; i >= 0; i = bit & (i-1)) {\n\n            add(w, v[i]);\n\n            if (i == 0) break;\n\n        }\n\n        ans[bit] = w.first + w.second;\n\n    }\n\n    int ret = 0;\n\n    for (int i = 1; i < (1 << n); i++) {\n\n        ret = max(ret, ans[i]);\n\n        printf(\"%d\\n\", ret);\n\n    }\n\n    return 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003618"}
{"label": "pie_cpp_test_003622", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 108, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 108, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003622.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003622", "task_path": "tasks/test/pie_cpp_test_003622.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <iomanip>\n\n#include <ios> \n\n#include <vector>\n\n#include <string>\n\n#include <algorithm>\n\n#include <functional>\n\n#include <queue>\n\n#include <stack>\n\n#include <set>\n\n#include <cmath>\n\n#include <bitset>\n\n#include <map>\n\n#define rep(i,n) for(int (i)=0;(i)<(n);(i)++)\n\n#define rep1(i,n) for(int i=1;i<=(int)(n);i++)\n\n#define sz(c) ((int)(c).size())\n\n \n\nusing namespace std;\n\ntypedef long long ll;\n\ntypedef vector<int> vi;\n\n//const int MAX=;\n\n \n\nint main(){\n\n\tint N;\n\n\tcin>>N;\n\n\tint A[1<<18];\n\n\trep(j,1<<N)cin>>A[j];\n\n\t\n\n\t\n\n\tint p[1<<18], q[1<<18];\n\n\trep(j,1<<N){\n\n\t\tp[j]=A[j];\n\n\t\tq[j]=0;\n\n\t}\n\n\t\n\n\trep(i,N)rep(j,1<<N)if((j & 1<<i)){\n\n\t\tint x[4];\n\n\t\tx[0]=p[j];x[1]=q[j];x[2]=p[j ^ (1<<i)];x[3]=q[j ^ (1<<i)];\n\n\t\tsort(x,x+4);\n\n\t\tp[j]=x[3];q[j]=x[2];\n\n\t}\n\n\tint s[1<<18];\n\n\trep(j,1<<N){\n\n\t\ts[j]=p[j]+q[j];\n\n\t}\n\n\tint ans=0;\n\n\trep1(j,(1<<N)-1){\n\n\t\tans=max(ans,s[j]);\n\n\t\tcout<<ans<<endl;\n\n\t}\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003622"}
{"label": "pie_cpp_test_003634", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 72, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 72, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003634.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003634", "task_path": "tasks/test/pie_cpp_test_003634.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <utility>\n\nusing namespace std;\n\ntypedef pair<int,int> pii;\n\npii mx(pii a, pii b){\n\n\tint i,ma1 = -1,ma2 = -1,c[4];\n\n\tc[0] = a.first,c[1] = a.second,c[2] = b.first,c[3] = b.second;\n\n\tfor(i=0;i<4;i++){\n\n\t\tif(ma1<c[i]){\n\n\t\t\tma2 = ma1; ma1 = c[i];\n\n\t\t}else if(ma2<c[i]){\n\n\t\t\tma2 = c[i];\n\n\t\t}\n\n\t}\n\n\treturn {ma1,ma2};\n\n}\n\nint a[1<<20];\n\npii dp[1<<20];\n\nint main(){\n\n\tint i,j,n;\n\n\tcin >> n;\n\n\tfor(i=0;i<(1<<n);i++){\n\n\t\tcin >> a[i];\n\n\t\tdp[i] = {a[i],0};\n\n\t}\n\n\tfor(i=0;i<n;i++){\n\n\t\tfor(j=0;j<(1<<n);j++){\n\n\t\t\tif(j&(1<<i)){\n\n\t\t\t\tdp[j] = mx(dp[j],dp[j^(1<<i)]);\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tint ans = a[0] + a[1];\n\n\tfor(i=1;i<(1<<n);i++){\n\n\t\tans = max(ans,dp[i].first + dp[i].second);\n\n\t\tcout << ans << endl;\n\n\t}\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003634"}
{"label": "pie_cpp_test_003637", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 83, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 83, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003637.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003637", "task_path": "tasks/test/pie_cpp_test_003637.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n\n\nusing namespace std;\n\n\n\nconst int inf = 1000000000;\n\n\n\nint main() {\n\n\tint n;\n\n\tcin >> n;\n\n\n\n\tint m = 1 << n;\n\n\n\n\tvector<int> a;\n\n\ta.resize(m);\n\n\n\n\tfor(int i = 0; i < m; ++i) {\n\n\t\tcin >> a[i];\n\n\t}\n\n\n\n\tvector<int> dp_1;\n\n\tdp_1.resize(m);\n\n\tiota(dp_1.begin(), dp_1.end(), 0);\n\n\n\n\tvector<int> dp_2;\n\n\tdp_2.assign(m, -1);\n\n\n\n\tfor(int S = 0; S < m; ++S) {\n\n\t\tfor(int i = 0; i < n; ++i) {\n\n\t\t\tif((S >> i & 1) == 0) {\n\n\t\t\t\tif(dp_1[S] != dp_1[S ^ (1 << i)]) {\n\n\t\t\t\t\tif(a[dp_1[S]] >= a[dp_1[S ^ (1 << i)]]) {\n\n\t\t\t\t\t\tdp_2[S ^ (1 << i)] = dp_1[S ^ (1 << i)];\n\n\t\t\t\t\t\tdp_1[S ^ (1 << i)] = dp_1[S];\n\n\t\t\t\t\t} else if(dp_2[S ^ (1 << i)] == -1 || a[dp_1[S]] > a[dp_2[S ^ (1 << i)]]) {\n\n\t\t\t\t\t\tdp_2[S ^ (1 << i)] = dp_1[S];\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\n\n\tint ans = -inf;\n\n\n\n\tfor(int i = 1; i < m; ++i) {\n\n\t\tans = max(ans, a[dp_1[i]] + a[dp_2[i]]);\n\n\t\tcout << ans << '\\n';\n\n\t}\n\n\n\n\treturn 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003637"}
{"label": "pie_cpp_test_003646", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 367, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 367, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003646.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003646", "task_path": "tasks/test/pie_cpp_test_003646.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include<iostream>\n\n#include<stdio.h>\n\n#include<vector>\n\n#include<cmath>\n\n#include<queue>\n\n#include<string.h>\n\n#include<map>\n\n#include<set>\n\n#include<algorithm>\n\n#define ll long long\n\n#define pi pair < ll,ll >\n\n#define mp(a,b) make_pair(a,b)\n\n#define rep(i,a,b) for(int i = a;i < b;i++)\n\n#define N 300004\n\n#define INF 1e9+7\n\n\n\nusing namespace std;\n\n\n\nll ola,n,ar[N],ans[N];\n\npi dp[N];\n\n\n\nbool ison(ll mask,ll ind)\n\n{\n\n    return (mask>>ind)&1;\n\n}\n\n\n\nvoid solve()\n\n{\n\n    dp[0].first = ar[0];\n\n    dp[0].second = -INF;\n\n\n\n    rep(i,1,ola)\n\n    {\n\n        dp[i].first = -INF;\n\n        dp[i].second = -INF;\n\n\n\n       // cout << \"i: \" << i << \"\\n\";\n\n\n\n        for(int j = i;j >= 0;j = i&(j-1))\n\n        {\n\n        //    cout << j << \" \";\n\n            if(ar[j] >= dp[i].first)\n\n            {\n\n                dp[i].second = dp[i].first;\n\n                dp[i].first=ar[j];\n\n            }\n\n            else if(ar[j] > dp[i].second)\n\n            {\n\n                dp[i].second=ar[j];\n\n            }\n\n\n\n            if(j == 0)\n\n                break;\n\n        }\n\n\n\n        //cout << endl << dp[i].first << \" \" << dp[i].second << endl;;\n\n\n\n        ans[i] = dp[i].first+dp[i].second;\n\n    }\n\n\n\n    return;\n\n}\n\n\n\nint main()\n\n{\n\n    ios_base::sync_with_stdio(false);\n\n    cin.tie(0);\n\n\n\n    cin >> n;\n\n    ola = (1<<n);\n\n\n\n    rep(i,0,ola)\n\n        cin >> ar[i];\n\n\n\n    solve();\n\n\n\n    rep(k,1,ola)\n\n    {\n\n        ans[k] = max(ans[k],ans[k-1]);\n\n        cout << ans[k] << \"\\n\";\n\n  //      cout << dp[k].first << \" \" <<dp[k].second << \"\\n\";\n\n    }\n\n\n\n    return 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003646"}
{"label": "pie_cpp_test_003648", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 573, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 573, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003648.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003648", "task_path": "tasks/test/pie_cpp_test_003648.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include<bits/stdc++.h>\n\nusing namespace std;\n\nint a[1000010],n,r,s1,s2;\n\nint main(){\n\n\tscanf(\"%d\",&n);\n\n\tfor(int i=0;i<(1<<n);i++)\n\n\t\tscanf(\"%d\",&a[i]);\n\n\tfor(int i=1;i<(1<<n);i++){\n\n\t\ts1=a[0],s2=0;\n\n\t\tfor(int j=i;j;j=(j-1)&i){\n\n\t\t\tif(a[j]>s1){\n\n\t\t\t\ts2=s1;\n\n\t\t\t\ts1=a[j];\n\n\t\t\t}\n\n\t\t\telse if(a[j]>s2)\n\n\t\t\t\ts2=a[j];\n\n\t\t}\n\n\t\tr=max(r,s1+s2);\n\n\t\tprintf(\"%d\\n\",r);\n\n\t}\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003648"}
{"label": "pie_cpp_test_003650", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 122, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 122, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003650.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003650", "task_path": "tasks/test/pie_cpp_test_003650.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include <algorithm>\n\n#include <cstdio>\n\n#include <cstring>\n\n\n\n#define int long long\n\n\n\nconst int Maxv = 300010; \n\n\n\nint ans[Maxv], max[Maxv], num, n; \n\n\n\nsigned main() {\n\n    scanf(\"%lld\", &n); \n\n    \n\n    for (int i = 0; i < (1 << n); i++) {\n\n        scanf(\"%lld\", &num); \n\n    \n\n        for(int j = i; j < (1 << n); ((++j) |= i)) {\n\n            ans[j] = std::max(ans[j], max[j] + num); \n\n            max[j] = std::max(max[j], num); \n\n        }\n\n    }\n\n       \n\n    for (int i = 1; i < 1 << n; i++) {\n\n        printf(\"%lld\\n\", ans[i]); \n\n        ans[i + 1] = std::max(ans[i + 1], ans[i]); \n\n    }\n\n    \n\n    return 0; \n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003650"}
{"label": "pie_cpp_test_003652", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 59, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 59, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003652.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003652", "task_path": "tasks/test/pie_cpp_test_003652.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\n\n\nint n, a[(1 << 18) + 5], ans[(1 << 18) + 5];\n\n\n\nint main() {\n\n\tscanf(\"%d\", &n);\n\n\tn = 1 << n;\n\n\n\n\tfor(int i = 0; i < n; i++)\n\n\t\tscanf(\"%d\", &a[i]);\n\n\n\n\tfor(int mask = 1; mask < n; mask++) {\n\n\t\tint x = a[0], y = 0;\n\n\t\tfor(int msk = mask; msk > 0; msk = (msk - 1) & mask) {\n\n\t\t\tif(a[msk] > x) {\n\n\t\t\t\ty = x;\n\n\t\t\t\tx = a[msk];\n\n\t\t\t}\n\n\n\n\t\t\telse if(a[msk] > y)\n\n\t\t\t\ty = a[msk];\n\n\t\t}\n\n\n\n\t\tans[mask] = x + y;\n\n\t}\n\n\n\n\tfor(int i = 1; i < n; i++) {\n\n\t\tans[i] = max(ans[i - 1], ans[i]);\n\n\t\tprintf(\"%d\\n\", ans[i]);\n\n\t}\n\n\n\n\treturn 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003652"}
{"label": "pie_cpp_test_003656", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 268, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 268, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003656.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003656", "task_path": "tasks/test/pie_cpp_test_003656.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <string>\n\n#include <vector>\n\n#include <set>\n\n#include <algorithm>\n\n#include <cctype>\n\n#include <cmath>\n\n#include <queue>\n\n#include <map>\n\n#include <numeric>\n\n#include <unordered_map>\n\n#include <iomanip>\n\n#include <functional>\n\n#include <bitset>\n\n#include <complex>\n\n\n\n#define rep(i, n) for(int i = 0; i < (int)(n); i++)\n\n#define repi(i,a,b) for(int i=int(a);i<int(b);i++)\n\n#define all(x) (x).begin(),(x).end()\n\n\n\ntemplate<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }\n\ntemplate<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }\n\n\n\ntypedef long long ll;\n\n\n\nusing namespace std;\n\n\n\n\n\nint main()\n\n{\n\n  ios::sync_with_stdio(false);\n\n  cin.tie(0);\n\n  int n;\n\n  cin>>n;\n\n  int l=1<<n;\n\n  vector<int>a(l+1);\n\n  rep(i,l)cin>>a[i];\n\n  vector<pair<int,int>>dp(l);\n\n  rep(i,l)\n\n  {\n\n    int ti=i,used=0;\n\n    dp[i]={i,l};\n\n    vector<int>id;\n\n    id.push_back(0);\n\n    id.push_back(i);\n\n    id.push_back(l);\n\n    while(used!=i)\n\n    {\n\n      int ni=((ti-1-used)&i)|used;\n\n      id.push_back(dp[ni].first);\n\n      id.push_back(dp[ni].second);\n\n      used|=i-ni;\n\n    }\n\n    sort(all(id));\n\n    id.erase(unique(all(id)),id.end());\n\n    sort(all(id),[&](int x,int y){return a[x]>a[y];});\n\n\n\n\n\n    dp[i]={id[0],id[1]};\n\n\n\n  }\n\n  vector<int>res(l+1);\n\n  //rep(i,l)cout<<dp[i].first<<dp[i].second<<endl;\n\n  rep(i,l-1)res[i+1]=max(res[i],a[dp[i+1].first]+a[dp[i+1].second]);\n\n  rep(i,l-1)cout<<res[i+1]<<endl;\n\n\n\n  return 0;\n\n\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003656"}
{"label": "pie_cpp_test_003667", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 65, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 65, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003667.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003667", "task_path": "tasks/test/pie_cpp_test_003667.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\ntemplate<typename T>\n\ninline T read(T&x){\n\n\tx=0;int f=0;char ch=getchar();\n\n\twhile (ch<'0' || ch>'9') f|=(ch=='-'),ch=getchar();\n\n\twhile (ch>='0'&&ch<='9') x=x*10+ch-'0',ch=getchar();\n\n\treturn x=f?-x:x;\n\n}\n\nconst int N=(1<<18)+10;\n\nint n,i,j,status,a[N];\n\npair<int,int> f[N];\n\ninline void up(pair<int,int> &a,pair<int,int> b){\n\n\tif (b.second>=a.first){\n\n\t\ta=b;\n\n\t}\n\n\telse if (b.first>=a.first){\n\n\t\ta.second=a.first;\n\n\t\ta.first=b.first;\n\n\t}\n\n\telse if (b.first<a.first && b.first>=a.second){\n\n\t\ta.second=b.first;\n\n\t}\n\n}\n\nint main(){\n\n\tread(n);\n\n\tfor (i=0;i<(1<<n);++i){\n\n\t\tread(a[i]);\n\n\t\tf[i].first=a[i];\n\n\t}\n\n\tfor (i=0;i<n;++i){\n\n\t\tfor (status=0;status<(1<<n);++status){\n\n\t\t\tif (status&(1<<i)) up(f[status],f[status^(1<<i)]);\n\n\t\t}\n\n\t}\n\n\tfor (i=1;i<(1<<n);++i){\n\n\t\tint res=f[i].first+f[i].second;\n\n\t\tfor (j=1;j<n;j++){\n\n\t\t\tif (i&(1<<j)){\n\n\t\t\t\tint pos=(i^(1<<j))|((1<<j)-1);\n\n\t\t\t\tres=max(res,f[pos].first+f[pos].second);\n\n\t\t\t}\n\n\t\t}\n\n\t\tprintf(\"%d\\n\",res);\n\n\t}\n\n\treturn 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003667"}
{"label": "pie_cpp_test_003675", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 493, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 493, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003675.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003675", "task_path": "tasks/test/pie_cpp_test_003675.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\ntypedef long long ll;\n\ninline void merg(int arr[2], int v){\n\n  if(v >= arr[1])\n\n    arr[0] = arr[1], arr[1] = v;\n\n  else if(v >= arr[0])\n\n    arr[0] = v;\n\n}\n\nint main(){\n\n//  freopen(\"in.txt\", \"r\", stdin);\n\n//  freopen(\"out.txt\", \"w\", stdout);\n\n  int n;\n\n  cin >> n;\n\n  int len = 1 << n;\n\n  int a[len];\n\n  for(int i = 0;i < len;i++)\n\n    scanf(\"%d\", a + i);\n\n  int two[len][2];\n\n  for(int i = 1;i < len;i++){\n\n    two[i][0] = -1;\n\n    two[i][1] = a[0];\n\n    for(int j = i;j > 0;j = (j - 1) & i)\n\n      merg(two[i], a[j]);\n\n  }\n\n  int res[len];\n\n  res[1] = two[1][0] + two[1][1];\n\n  printf(\"%d\\n\", res[1]);\n\n  for(int i = 2;i < len;i++){\n\n    res[i] = max(res[i - 1], two[i][0] + two[i][1]);\n\n    printf(\"%d\\n\", res[i]);\n\n  }\n\n  return 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003675"}
{"label": "pie_cpp_test_003680", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 1191, "hidden_test_count": 1, "problem_id": "p03313", "reference_metric": "runtime_cpu_ns", "reference_value": 1191, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/test/pie_cpp_test_003680.json", "split": "test", "subset": "eval", "task_id": "pie_cpp_test_003680", "task_path": "tasks/test/pie_cpp_test_003680.json", "visible_test_count": 1}, "problem_id": "p03313", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n1 2 3 1\n\nExpected output:\n3\n4\n5\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n#define typeof(x) __typeof__(x)\n\n#define int long long int\n\n#define double long double\n\n#define mod(x) ((x % MOD) + MOD) % MOD\n\n#define rep(i,a,b) for(int i=(a);i<(b);++i)\n\n#define rrep(i,a,b) for(int i=(b)-1;i>=(a);--i)\n\n\n\n#define ALL(c) (c).begin(),(c).end()\n\n#define RALL(c) (c).rbegin(),(c).rend()\n\n#define SZ(c) (int)((c).size())\n\n#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)\n\n#define SORT(c) sort(ALL(c))\n\n#define RSORT(c) sort(RALL(c))\n\n#define LB(c,x) (int)(lower_bound(ALL(c),x)-(c).begin())\n\n#define UB(c,x) (int)(upper_bound(ALL(c),x)-(c).begin())\n\n#define COUNT(c,x) UB(c,x)-LB(c,x)\n\n#define UNIQUE(c) SORT(c); (c).erase(unique(ALL(c)),(c).end());\n\n#define COPY(c1,c2) copy(ALL(c1),(c2).begin())\n\n#define EXIST(s,e) (s).find(e)!=(s).end()\n\n#define PB push_back\n\n#define MP make_pair\n\n#define vec vector\n\n\n\n#define dump(x)  cerr << #x << \" = \" << (x) << endl;\n\n\n\nusing namespace std;\n\n\n\ntypedef pair<int,int> P;\n\nstruct edge { int to, cost; };\n\n\n\nconst int INF = 1e18;\n\nconst int MOD = 1e9+7;\n\n\n\ntemplate<typename T> ostream& operator << (ostream& s, const vector<T>& v) {\n\n   s << \"[\";\n\n   for (int i = 0; i < v.size(); i++) { s << v[i]; if (i < v.size() - 1) s << \" \"; }\n\n   s << \"]\";\n\n   return s;\n\n}\n\ntemplate<typename T1, typename T2> ostream& operator << (ostream& s, const pair<T1,T2>& p) {\n\n   s << \"(\" << p.first << \",\" << p.second << \")\";\n\n   return s;\n\n}\n\n\n\nvoid zeta(vec<P>& f)\n\n{\n\n   int n = f.size();\n\n   for (int i = 0; (1 << i) < n; i++) {\n\n      for (int j = 0; j < n; j++) {\n\n         if ((j >> i) & 1) {\n\n            vec<int> tmp;\n\n            tmp.PB(f[j].first);\n\n            tmp.PB(f[j].second);\n\n            tmp.PB(f[j ^ (1 << i)].first);\n\n            tmp.PB(f[j ^ (1 << i)].second);\n\n            RSORT(tmp);\n\n            f[j].first = tmp[0];\n\n            f[j].second = tmp[1];\n\n         }\n\n      }\n\n   }\n\n}\n\n\n\nsigned main()\n\n{\n\n   int N; cin >> N;\n\n   vec<int> A(1 << N);\n\n   rep(s, 0, 1 << N) {\n\n      cin >> A[s];\n\n   }\n\n\n\n\n\n   vec<P> f(1 << N, MP(0,0));\n\n   rep(s, 0, 1 << N) {\n\n      f[s].first = A[s];\n\n   }\n\n\n\n   dump(f)\n\n\n\n   zeta(f);\n\n\n\n   int MAX = 0;\n\n   rep(s, 1, 1 << N) {\n\n      MAX = max(MAX, f[s].first + f[s].second);\n\n      cout << MAX << endl;\n\n   }\n\n\n\n   return 0;\n\n}\n```", "split": "test", "task_id": "pie_cpp_test_003680"}
{"label": "pie_cpp_validation_000059", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 432, "hidden_test_count": 1, "problem_id": "p03375", "reference_metric": "runtime_cpu_ns", "reference_value": 432, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_000059.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_000059", "task_path": "tasks/validation/pie_cpp_validation_000059.json", "visible_test_count": 1}, "problem_id": "p03375", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2 1000000007\n\nExpected output:\n2\n\n\nProgram:\n```cpp\n#include<cstdio>\n\n#include<cstring>\n\n#include<ctime>\n\n#include<cstdlib>\n\n\n\n#define rg register\n\n#define il inline\n\n#define MX (3000 + 5)\n\n#define ll long long\n\n\n\nll n ,m;\n\n\n\nll qpow(ll a ,ll b ,ll mod){\n\n\tif(b == 0)\treturn 1;\n\n\tif(b == 1)\treturn a;\n\n\tll t = qpow(a ,b >> 1 ,mod);\n\n\tif(b & 1)\treturn t * t % mod * a % mod;\n\n\treturn t * t % mod;\n\n}\n\n\n\nint C[MX][MX];\n\nll g[MX][MX] ,f[MX];\n\n\n\nint main(){\n\n\tscanf(\"%lld%lld\" ,&n ,&m);\n\n\tfor(rg int i = 0 ; i <= 3000 ; ++i)\tC[i][0] = 1;\n\n\tfor(rg int i = 1 ; i <= 3000 ; ++i)\n\n\t\tfor(rg int j = 1 ; j < MX ; ++j)\n\n\t\t\tC[i][j] = (C[i - 1][j - 1] + C[i - 1][j]) % m;\n\n\t//g[i][j]\u8868\u793a\u9009\u4e2di\u4e2atopping\u4e0d\u5408\u6cd5\u653e\u5728j\u7897\u9762\u91cc\u7684\u65b9\u6848 \n\n\tfor(rg int i = 0 ; i <= n ; ++i)\tg[i][0] = 1;\n\n\tfor(rg int i = 1 ; i <= n ; ++i)\n\n\t\tfor(rg int j = 1 ; j <= i ; ++j)\n\n\t\t\tg[i][j] = (g[i - 1][j] * (j + 1) % m + g[i - 1][j - 1]) % m;\n\n\tll ans = 0;\n\n\tfor(rg int i = 0 ; i <= n ; ++i){\n\n\t\tll tmp = qpow(2LL ,qpow(2LL ,n - i ,m - 1) ,m);\n\n\t\tfor(rg int j = 0 ; j <= i ;++j){\n\n\t\t\tf[i] = (f[i] + g[i][j] * qpow(2LL ,(n - i) * j ,m) % m * tmp % m) % m;\n\n\t\t}\n\n\t\tans += (i & 1 ? -1 : 1) * (ll)C[n][i] * f[i] % m;\n\n\t\tans = (ans + m) % m;\n\n\t}\n\n\t\n\n\t\n\n\t/*\n\n\tfor(rg int i = n ; ~i ; --i){\n\n\t\tfor(rg int j = i + 1 ; j <= n ; ++j){\n\n\t\t\tf[i] = (f[i] - f[j] * C[n][j] % m + m) % m;\n\n\t\t}\n\n\t}\n\n\t*/\n\n\tprintf(\"%lld\" ,ans);\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_000059"}
{"label": "pie_cpp_validation_000060", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 156, "hidden_test_count": 1, "problem_id": "p03375", "reference_metric": "runtime_cpu_ns", "reference_value": 156, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_000060.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_000060", "task_path": "tasks/validation/pie_cpp_validation_000060.json", "visible_test_count": 1}, "problem_id": "p03375", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2 1000000007\n\nExpected output:\n2\n\n\nProgram:\n```cpp\n#include<bits/stdc++.h>\n\nusing namespace std;\n\n\n\n#define CO const\n\n#define IN inline\n\ntypedef long long LL;\n\ntypedef long double LD;\n\n\n\ntemplate<class T> T read(){\n\n\tT x=0,w=1;char c=getchar();\n\n\tfor(;!isdigit(c);c=getchar())if(c=='-') w=-w;\n\n\tfor(;isdigit(c);c=getchar()) x=x*10+c-'0';\n\n\treturn x*w;\n\n}\n\ntemplate<class T> IN T read(T&x){\n\n\treturn x=read<T>();\n\n}\n\n\n\nint mod;\n\nIN int add(int a,int b){\n\n\treturn (a+=b)>=mod?a-mod:a;\n\n}\n\nIN int mul(int a,int b){\n\n\treturn (LL)a*b%mod;\n\n}\n\nIN int fpow(int a,int b){\n\n\tint ans=1;\n\n\tfor(;b;b>>=1,a=mul(a,a))\n\n\t\tif(b&1) ans=mul(ans,a);\n\n\treturn ans;\n\n}\n\n\n\nCO int N=3000+10;\n\nint C[N][N],S[N][N],B[N];\n\n\n\nint main(){\n\n\tint n=read<int>();read(mod);\n\n\tfor(int i=0;i<=n;++i){\n\n\t\tC[i][0]=C[i][i]=1;\n\n\t\tfor(int j=1;j<i;++j) C[i][j]=add(C[i-1][j-1],C[i-1][j]);\n\n\t}\n\n\tS[0][0]=1;\n\n\tfor(int i=1;i<=n+1;++i)for(int j=1;j<=i;++j)\n\n\t\tS[i][j]=add(S[i-1][j-1],mul(j,S[i-1][j]));\n\n\tB[0]=1;\n\n\tfor(int i=1;i<=n;++i){\n\n\t\tB[i]=B[i-1]<<1;\n\n\t\tif(B[i]>=mod-1) B[i]-=mod-1;\n\n\t}\n\n\tint ans=0;\n\n\tfor(int i=0;i<=n;++i){\n\n\t\tint sum=0;\n\n\t\tfor(int j=0;j<=i;++j) sum=add(sum,mul(S[i+1][j+1],fpow(2,(n-i)*j)));\n\n\t\tsum=mul(sum,mul(C[n][i],fpow(2,B[n-i])));\n\n\t\tans=add(ans,i&1?mod-sum:sum);\n\n\t}\n\n\tprintf(\"%d\\n\",ans);\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_000060"}
{"label": "pie_cpp_validation_000076", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 310, "hidden_test_count": 1, "problem_id": "p03375", "reference_metric": "runtime_cpu_ns", "reference_value": 310, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_000076.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_000076", "task_path": "tasks/validation/pie_cpp_validation_000076.json", "visible_test_count": 1}, "problem_id": "p03375", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2 1000000007\n\nExpected output:\n2\n\n\nProgram:\n```cpp\n#include<bits/stdc++.h>\n\nusing namespace std;\n\nint n, s[3007][3007], fac[3007], inv[3007], res, mod;\n\nint fpow(int a, int x, int mod)\n\n{\n\n\tint res = 1;\n\n\twhile (x)\n\n\t{\n\n\t\tif (x & 1)res = 1LL * res * a % mod;\n\n\t\ta = 1LL * a * a % mod;\n\n\t\tx >>= 1;\n\n\t}\n\n\treturn res;\n\n}\n\nint main()\n\n{\n\n\tcin >> n >> mod;\n\n\ts[0][0] = 1;\n\n\tfor (int i = 1; i <= n + 1; i++)\n\n\t\tfor (int j = 1; j <= n + 1; j++)\n\n\t\t\ts[i][j] = (1LL * s[i - 1][j] * j % mod + s[i - 1][j - 1]) % mod;\n\n\tfac[0] = fac[1] = inv[0] = inv[1] = 1;\n\n\tfor (int i = 2; i <= n; i++)\n\n\t\tfac[i] = 1LL * fac[i - 1] * i % mod;\n\n\tfor (int i = 2; i <= n; i++)\n\n\t\tinv[i] = 1LL * (mod - mod / i) * inv[mod % i] % mod;\n\n\tfor (int i = 2; i <= n; i++)\n\n\t\tinv[i] = 1LL * inv[i - 1] * inv[i] % mod;\n\n\tfor (int i = 0; i <= n; i++)\n\n\t{\n\n\t\tint tot = 0;\n\n\t\tint a = fpow(2, fpow(2, n - i, mod - 1), mod);\n\n\t\tint b = fpow(2, n - i, mod);\n\n\t\tfor (int j = 0, k = 1; j <= i; j++, k = 1LL * k * b % mod)\n\n\t\t\ttot = (tot + 1LL * s[i + 1][j + 1] * a % mod * k % mod) % mod;\n\n\t\tres = (res + 1LL * (i & 1 ? mod - 1 : 1) * fac[n] % mod * inv[i] % mod * inv[n - i] % mod * tot % mod) % mod;\n\n\t}\n\n\tcout << res << endl;\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_000076"}
{"label": "pie_cpp_validation_000079", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 166, "hidden_test_count": 1, "problem_id": "p03375", "reference_metric": "runtime_cpu_ns", "reference_value": 166, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_000079.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_000079", "task_path": "tasks/validation/pie_cpp_validation_000079.json", "visible_test_count": 1}, "problem_id": "p03375", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2 1000000007\n\nExpected output:\n2\n\n\nProgram:\n```cpp\n#include<iostream>\n\n#include<cstdio>\n\n#include<cstring>\n\n#include<algorithm>\n\nusing namespace std;\n\nconst int N=3010;\n\nint n,mod;\n\nlong long f[N][N],c[N][N];\n\ninline long long add(long long x,long long y)\n\n{\n\n    return x+y>=mod?x+y-mod:x+y;\n\n}\n\ninline long long sub(long long x,long long y)\n\n{\n\n    return x-y<0?x-y+mod:x-y;\n\n}\n\ninline long long po(long long x,long long y,int p)\n\n{\n\n    long long u=1ll;\n\n    while(y)\n\n    {\n\n        if(y&1) (u*=x)%=p;\n\n        (x*=x)%=p;\n\n        y>>=1;\n\n    }\n\n    return u;\n\n}\n\nint main()\n\n{\n\n    scanf(\"%d%d\",&n,&mod);\n\n    f[0][0]=1ll;\n\n    for(int k=1;k<=n+1;k++)\n\n        for(int i=1;i<=k;i++)\n\n            f[k][i]=add(f[k-1][i-1],i*f[k-1][i]%mod);\n\n    for(int k=0;k<=n;k++)\n\n    {\n\n        for(int i=0;i<=k;i++)\n\n        {\n\n            if(k==0||i==0) c[k][i]=1ll;\n\n            else c[k][i]=add(c[k-1][i-1],c[k-1][i]);\n\n        }\n\n    }\n\n    long long ans=po(2,po(2,n,mod-1),mod);\n\n    for(int k=1;k<=n;k++)\n\n    {\n\n        long long anss=0ll;\n\n        for(int i=0;i<=k;i++)\n\n            anss=add(anss,f[k+1][i+1]*po(po(2,n-k,mod),i,mod)%mod);\n\n        (anss*=c[n][k]*po(2,po(2,n-k,mod-1),mod)%mod)%=mod;\n\n        if(k&1) ans=sub(ans,anss);\n\n        else ans=add(ans,anss);\n\n    }\n\n    printf(\"%lld\\n\",ans);\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_000079"}
{"label": "pie_cpp_validation_000100", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 383, "hidden_test_count": 1, "problem_id": "p03375", "reference_metric": "runtime_cpu_ns", "reference_value": 383, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_000100.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_000100", "task_path": "tasks/validation/pie_cpp_validation_000100.json", "visible_test_count": 1}, "problem_id": "p03375", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2 1000000007\n\nExpected output:\n2\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n#define inc(i,a,b) for(register int i=a;i<=b;i++)\n\nusing namespace std;\n\nlong long KSM(long long a,long long b,long long p){\n\n\tlong long res=1;\n\n\twhile(b){\n\n\t\tif(b&1) res=res*a%p;\n\n\t\ta=a*a%p;\n\n\t\tb/=2;\n\n\t}\n\n\treturn res%p;\n\n}\n\nlong long c[3010][3010],s[3010][3010];\n\nint main(){\n\n\tlong long n,p;\n\n\tcin>>n>>p;\n\n\tc[0][0]=s[0][0]=1;\n\n\tinc(i,1,n+1){\n\n\t\tc[i][0]=1;\n\n\t\tinc(j,1,i){\n\n\t\t\tc[i][j]=(c[i-1][j]+c[i-1][j-1])%p;\n\n\t\t\ts[i][j]=(s[i-1][j-1]+(long long)j*s[i-1][j]%p)%p;\n\n\t\t}\n\n\t}\n\n\tlong long ans=0;\n\n\tinc(i,0,n){\n\n\t\tlong long sum=(i&1)?p-1:1;\n\n\t\tsum=sum*KSM(2,KSM(2,n-i,p-1),p)%p;\n\n\t\tsum=sum*c[n][i]%p;\n\n\t\tlong long tmp=0;\n\n\t\tinc(j,0,i){\n\n\t\t\ttmp=(tmp+s[i+1][j+1]*KSM(KSM(2,(n-i),p)%p,j,p))%p;\n\n\t\t}\n\n\t\tsum=sum*tmp%p;\n\n\t\tans=((ans+sum)%p+p)%p;\n\n\t}\n\n\tcout<<ans;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_000100"}
{"label": "pie_cpp_validation_001061", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 1, "hidden_test_count": 1, "problem_id": "p03386", "reference_metric": "runtime_cpu_ns", "reference_value": 1, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001061.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001061", "task_path": "tasks/validation/pie_cpp_validation_001061.json", "visible_test_count": 1}, "problem_id": "p03386", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 8 2\n\nExpected output:\n3\n4\n7\n8\n\n\nProgram:\n```cpp\n#include<bits/stdc++.h>\n\nusing namespace std;\n\nint A[100] ;\n\nint main()\n\n{\n\n    int a,b,k;\n\n    cin >> a >> b >> k;\n\n    if(2* k >= (b-a+1))\n\n    {\n\n        for(int i =a;i<=b;i++)\n\n            cout << i << endl;\n\n    }\n\n    else\n\n    {\n\n        for(int i = a;i<=a+k-1;i++)\n\n        {\n\n            cout << i << endl;\n\n        }\n\n        for(int i = b-k+1;i<=b;i++)\n\n        {\n\n            cout << i << endl;\n\n        }\n\n    }\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001061"}
{"label": "pie_cpp_validation_001062", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 1, "hidden_test_count": 1, "problem_id": "p03386", "reference_metric": "runtime_cpu_ns", "reference_value": 1, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001062.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001062", "task_path": "tasks/validation/pie_cpp_validation_001062.json", "visible_test_count": 1}, "problem_id": "p03386", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 8 2\n\nExpected output:\n3\n4\n7\n8\n\n\nProgram:\n```cpp\n#include <stdio.h>\n\nint main()\n\n{\n\n    int a, b, k;\n\n    scanf(\"%d%d%d\",&a,&b,&k);\n\n    int i;\n\n    for (i = a; i <= b; i++)\n\n    {\n\n        if (i - a < k || b - i < k)\n\n        {\n\n            printf(\"%d\\n\",i);\n\n         \n\n        }\n\n    }\n\n    return 0;\n\n\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001062"}
{"label": "pie_cpp_validation_001075", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 1, "hidden_test_count": 1, "problem_id": "p03386", "reference_metric": "runtime_cpu_ns", "reference_value": 1, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001075.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001075", "task_path": "tasks/validation/pie_cpp_validation_001075.json", "visible_test_count": 1}, "problem_id": "p03386", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 8 2\n\nExpected output:\n3\n4\n7\n8\n\n\nProgram:\n```cpp\n#define _GLIBCXX_DEBUG\n\n#include <bits/stdc++.h>\n\n#define range(i, l, r) for(long long int (i) = (l); (i) < (r); (i)++)\n\n#define reversed_range(i, l, r) for (long long int (i) = (r) - 1; (i) >= l; (i)--)\n\nusing namespace std;\n\ntemplate <typename T>\n\nusing vec = vector<T>;\n\nusing lint = long long;\n\nusing ulint = unsigned long long;\n\nusing pint = pair<int, int>;\n\nusing plint = pair<lint, lint>;\n\n\n\ntemplate <typename S, typename T>\n\nostream& operator <<(ostream& os, pair<S, T> p) {\n\n    os << \"(\";\n\n    os << p.first << \", \" << p.second;\n\n    return os << \")\";\n\n}\n\n\n\ntemplate <typename T>\n\nostream& operator <<(ostream& os, vec<T> v) {\n\n    os << \"[\";\n\n    if (v.size() == 0) return os << \"]\";\n\n    for (int i = 0; i < v.size() - 1; i++) {\n\n        os << v.at(i) << \", \";\n\n    }\n\n    return os << v.at(v.size() - 1) << \"]\";\n\n}\n\n\n\ntemplate <typename T>\n\nostream& operator <<(ostream& os, set<T>& s) {\n\n    os << \"{\";\n\n    if (s.begin() == s.end()) return os << \"}\";\n\n    auto it_first_item = s.begin();\n\n    cout << *it_first_item;\n\n    for (auto it = ++it_first_item; it != s.end(); it++) {\n\n        cout << \", \" << *it;\n\n    }\n\n    return cout << \"}\";\n\n}\n\n\n\ntemplate <typename T>\n\nostream& operator <<(ostream& os, unordered_set<T>& s) {\n\n    os << \"{\";\n\n    if (s.begin() == s.end()) return os << \"}\";\n\n    auto it_first_item = s.begin();\n\n    cout << *it_first_item;\n\n    for (auto it = ++it_first_item; it != s.end(); it++) {\n\n        cout << \", \" << *it;\n\n    }\n\n    return cout << \"}\";\n\n}\n\n\n\ntemplate <typename K, typename V>\n\nostream& operator <<(ostream& os, map<K, V> m) {\n\n    os << \"{\";\n\n    if (m.begin() == m.end()) return os << \"}\";\n\n    auto it_first_item = m.begin();\n\n    cout << it_first_item->first << \": \" << it_first_item->second;\n\n    for (auto it = ++it_first_item; it != m.end(); it++) {\n\n        cout << \", \" << it->first << \": \" << it->second;\n\n    }\n\n    return os << \"}\";\n\n}\n\n\n\ntemplate <typename K, typename V>\n\nostream& operator <<(ostream& os, unordered_map<K, V> m) {\n\n    os << \"{\";\n\n    if (m.begin() == m.end()) return os << \"}\";\n\n    auto it_first_item = m.begin();\n\n    cout << it_first_item->first << \": \" << it_first_item->second;\n\n    for (auto it = ++it_first_item; it != m.end(); it++) {\n\n        cout << \", \" << it->first << \": \" << it->second;\n\n    }\n\n    return os << \"}\";\n\n}\n\n\n\nlint pow(lint num, lint e, lint MOD) {\n\n    lint res = 1;\n\n    lint cur_num = num;\n\n    while (e) {\n\n        if (e & 1) {\n\n            res *= cur_num;\n\n            res %= MOD;\n\n        }\n\n        cur_num *= cur_num;\n\n        cur_num %= MOD;\n\n        e >>= 1;\n\n    }\n\n    return res;\n\n}\n\n\n\nint main() {\n\n    cin.tie(0); cout.tie(0);\n\n    ios::sync_with_stdio(false);\n\n    cout << fixed << setprecision(10);\n\n    lint A, B, K; cin >> A >> B >> K;\n\n    range(i, A, B + 1) {\n\n        if (i - K < A or i + K > B) cout << i << \"\\n\";\n\n    }\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001075"}
{"label": "pie_cpp_validation_001090", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 1, "hidden_test_count": 1, "problem_id": "p03386", "reference_metric": "runtime_cpu_ns", "reference_value": 1, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001090.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001090", "task_path": "tasks/validation/pie_cpp_validation_001090.json", "visible_test_count": 1}, "problem_id": "p03386", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 8 2\n\nExpected output:\n3\n4\n7\n8\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <cstdio>\n\n#include <cstdlib>\n\n#include <cstring>\n\n#include <algorithm>\n\n#include <string>\n\n#include <sstream>\n\n#include <complex>\n\n#include <vector>\n\n#include <list>\n\n#include <queue>\n\n#include <deque>\n\n#include <stack>\n\n#include <map>\n\n#include <set>\n\n#include <iomanip>\n\nusing namespace std;\n\ntypedef long long ll;\n\ntemplate<typename T> using min_priority_queue = priority_queue<T, vector<T>, greater<T>>;\n\n\n\n#define EPS (1e-7)\n\n#define INF (1e15)\n\n#define PI (acos(-1))\n\n#define MOD 1000000007\n\n\n\n#define REP(i,n) for(int i=0;i<n;i++)\n\n#define REPS(i,f,n) for(int i=(f);i<(n);i++)\n\n#define EACH(it,v) for(__typeof((v).begin()) it=(v).begin();it!=(v).end();it++)\n\n\n\n#define dump(x)  cout << #x << \" = \" << (x) << endl;\n\n#define debug(x) cout << #x << \" = \" << (x) << \" (L\" << __LINE__ << \")\" << \" \" << __FILE__ << endl;\n\n#define arrdump(n,a) for(int i=0;i<n;i++) {cout<<((i>0)? \" \":\"\")<<a[i];}cout<<\"\\n\";\n\n\n\n\n\ntypedef pair<int, int> P;\n\ntypedef pair<ll, ll> LP;\n\ntypedef pair<int, P> PP;\n\ntypedef pair<ll, LP> LPP;\n\n\n\nint dy4[]={0, 0, 1, -1};\n\nint dx4[]={1, -1, 0, 0};\n\nint dx8[]={0, 0, 1, -1, 1, 1, -1, -1};\n\nint dy8[]={1, -1, 0, 0, 1, -1, -1, 1};\n\n\n\n// https://atcoder.jp/contests/abc093/tasks/abc093_b\n\n\n\nint main() {\n\n    int A, B, K; cin >> A >> B >> K;\n\n    set<int> st;\n\n\n\n    for (int i = A; i < A+K; i++) {\n\n        if (i > B) break;\n\n        st.insert(i);\n\n    }\n\n    for (int i = B; i > B-K; i--) {\n\n        if (i < A) break;\n\n        st.insert(i);\n\n    }\n\n    for (int t : st) {\n\n        cout << t << \"\\n\";\n\n    }\n\n\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001090"}
{"label": "pie_cpp_validation_001093", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 1, "hidden_test_count": 1, "problem_id": "p03386", "reference_metric": "runtime_cpu_ns", "reference_value": 1, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001093.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001093", "task_path": "tasks/validation/pie_cpp_validation_001093.json", "visible_test_count": 1}, "problem_id": "p03386", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 8 2\n\nExpected output:\n3\n4\n7\n8\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <vector>\n\n#include <algorithm>\n\n#include <string.h>\n\n#include <iomanip>\n\n#include <math.h>\n\n#include <string>\n\n#include <queue>\n\n#include <map>\n\n#include <set>\n\n#include <functional>\n\n\n\nusing namespace std;\n\n\n\ntypedef long long int ll;\n\ntypedef std::pair<int, int> pii;\n\ntypedef std::pair<ll, int> pli;\n\ntypedef std::pair<ll, ll> pll;\n\n\n\n#define FOR(i,n,m) for(ll i=(ll)(m);i<(ll)(n);++i)\n\n#define REP(i,n) FOR(i,n,0)\n\n#define IREP(i,n) for(ll i=(ll)(n);i>=0;--i)\n\n#define OF64 std::setprecision(10)\n\n\n\nconst ll MOD = 1000000007;\n\nconst ll INF = (ll)1e15;\n\n\n\nint main()\n\n{\n\n\tint A, B, K;\n\n\tcin >> A >> B >> K;\n\n\n\n\tFOR(i, B + 1, A)\n\n\t{\n\n\t\tif (i < A + K || i > B - K)\n\n\t\t{\n\n\t\t\tcout << i << endl;\n\n\t\t}\n\n\t}\n\n\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001093"}
{"label": "pie_cpp_validation_001099", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 1, "hidden_test_count": 1, "problem_id": "p03386", "reference_metric": "runtime_cpu_ns", "reference_value": 1, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001099.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001099", "task_path": "tasks/validation/pie_cpp_validation_001099.json", "visible_test_count": 1}, "problem_id": "p03386", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 8 2\n\nExpected output:\n3\n4\n7\n8\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n\n\nusing namespace std;\n\ntypedef long long ll;\n\nconst int MAXN = 2e3 + 5;\n\nint a[MAXN];\n\nset<int> s;\n\n\n\nint main() {\n\n    int a, b, n;\n\n    cin >> a >> b >> n;\n\n    for (int i = a; i <= a + n - 1; i++)\n\n        s.insert(i);\n\n    for (int i = b; i >= b - n + 1; i--)\n\n        s.insert(i);\n\n    for (auto i : s) {\n\n        if (i >= a && i <= b)\n\n            cout << i << endl;\n\n    }\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001099"}
{"label": "pie_cpp_validation_001109", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 1, "hidden_test_count": 1, "problem_id": "p03386", "reference_metric": "runtime_cpu_ns", "reference_value": 1, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001109.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001109", "task_path": "tasks/validation/pie_cpp_validation_001109.json", "visible_test_count": 1}, "problem_id": "p03386", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 8 2\n\nExpected output:\n3\n4\n7\n8\n\n\nProgram:\n```cpp\n//#define _GLIBCXX_DEBUG\n\n#include <bits/stdc++.h>\n\ntypedef int64_t int64;\n\ntypedef uint32_t uint;\n\ntypedef uint64_t uint64;\n\nusing namespace std;\n\n\n\n//---\n\n\n\ntemplate <typename T>\n\ninline void print(const T& rhs){ std::cout<<\" = \"<<rhs<<std::endl; }\n\ntemplate <typename T>\n\ninline void print(const std::vector<T>& rhs){\n\n    std::cout<<\" = [ \";\n\n    for(uint i=0; i<rhs.size(); ++i){ std::cout<<rhs[i]<<' '; }\n\n    std::cout<<\"]\"<<std::endl;\n\n}\n\ntemplate <typename T>\n\ninline void print(const std::vector<std::vector<T>>& rhs){\n\n    std::cout<<\" = \"<<std::endl;\n\n    std::cout<<\"[[ \";\n\n    for(uint p=0; p<rhs.size(); ++p){\n\n        if(p!=0){ std::cout<<\" [ \"; }\n\n        for(uint q=0; q<rhs[p].size(); ++q){\n\n            std::cout<<rhs[p][q]<<' ';\n\n        }\n\n        if(p!=rhs.size()-1){ std::cout<<\"]\"<<std::endl; }\n\n    }\n\n    std::cout<<\"]]\"<<std::endl;\n\n}\n\ntemplate <typename TL, typename TR>\n\ninline void print(const std::vector<std::pair<TR,TL>>& rhs){\n\n    std::cout<<\" = [\";\n\n    uint i=0;\n\n    for(; i<rhs.size()-1; ++i){ std::cout<<\"[f: \"<<rhs[i].first<<\", s: \"<<rhs[i].second<<\"], \"; }\n\n    std::cout<<\"[f: \"<<rhs[i].first<<\", s: \"<<rhs[i].second<<\"]]\" << endl;\n\n}\n\n#define printn(var) {printf(\"%s\", #var);print(var);}\n\n#define printn_all(var) {printf(\"%s(%d): \", __func__, __LINE__);printf(\"%s\", #var);print(var);}\n\n\n\n//---\n\n\n\nint main(){\n\n    ios_base::sync_with_stdio(false);\n\n    cin.tie(NULL);\n\n\n\n    string s;\n\n    \n\n    int A, B, K; cin >> A >> B >> K;\n\n    for(int i=A; i<=B; ++i){\n\n        if(i<A+K){ s += to_string(i) + '\\n'; continue; }\n\n        if(i>B-K){ s += to_string(i) + '\\n'; continue; }\n\n    }\n\n    \n\n    cout << s << endl;\n\n    \n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001109"}
{"label": "pie_cpp_validation_001130", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 1, "hidden_test_count": 1, "problem_id": "p03386", "reference_metric": "runtime_cpu_ns", "reference_value": 1, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001130.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001130", "task_path": "tasks/validation/pie_cpp_validation_001130.json", "visible_test_count": 1}, "problem_id": "p03386", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 8 2\n\nExpected output:\n3\n4\n7\n8\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <vector>\n\n#include <string>\n\n#include <cmath>\n\n#include <map>\n\n#include <utility>\n\n#include <algorithm>\n\nusing namespace std;\n\n\n\nint main(void){\n\n\n\n    long long int a, b, k;\n\n    cin>>a>>b>>k;\n\n    \n\n    vector<long long int> c;\n\n    \n\n    int t=a+k<b?a+k:b;\n\n    for(int i=a; i<t; i++){\n\n        c.push_back(i);\n\n    }\n\n    \n\n    t=b-k+1>a?b-k+1:a;\n\n    for(int i=t; i<=b; i++){\n\n        c.push_back(i);\n\n    }\n\n    sort(c.begin(), c.end());\n\n    int offset=0;\n\n    \n\n    for(int i=1; i<c.size(); i++){\n\n        if(c[i-1]==c[i]){\n\n            c[i-1]=-1;\n\n            offset++;\n\n        }\n\n    }\n\n    \n\n    sort(c.begin(), c.end());\n\n    \n\n    for(int i=offset; i<c.size(); i++){\n\n        cout<<c[i]<<endl;\n\n    }\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001130"}
{"label": "pie_cpp_validation_001132", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 1, "hidden_test_count": 1, "problem_id": "p03386", "reference_metric": "runtime_cpu_ns", "reference_value": 1, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001132.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001132", "task_path": "tasks/validation/pie_cpp_validation_001132.json", "visible_test_count": 1}, "problem_id": "p03386", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 8 2\n\nExpected output:\n3\n4\n7\n8\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <algorithm>\n\n#include <set>\n\nusing namespace std;\n\nint main()\n\n{\n\n  int A, B, K;\n\n  cin >> A >> B >> K;\n\n  set<int> st;\n\n  for (int i = A; i <= min(A + K - 1, B); i++)\n\n    st.insert(i);\n\n  for (int i = B; i >= max(B - K + 1, A); i--)\n\n    st.insert(i);\n\n  for (auto a : st)\n\n    cout << a << endl;\n\n  return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001132"}
{"label": "pie_cpp_validation_001137", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 2, "hidden_test_count": 1, "problem_id": "p03386", "reference_metric": "runtime_cpu_ns", "reference_value": 2, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001137.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001137", "task_path": "tasks/validation/pie_cpp_validation_001137.json", "visible_test_count": 1}, "problem_id": "p03386", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 8 2\n\nExpected output:\n3\n4\n7\n8\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n\n\nusing namespace std;\n\n\n\nint main() {\n\n  ios::sync_with_stdio(false);\n\n  cin.tie(0);\n\n\n\n  int a, b, k;\n\n  cin >> a >> b >> k;\n\n\n\n  for (int i = a; i <= b; ++i) {\n\n    if (i < a+k || i > b-k) \n\n      cout << i << endl;\n\n  }\n\n\n\n  return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001137"}
{"label": "pie_cpp_validation_001138", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 6, "hidden_test_count": 1, "problem_id": "p03386", "reference_metric": "runtime_cpu_ns", "reference_value": 6, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001138.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001138", "task_path": "tasks/validation/pie_cpp_validation_001138.json", "visible_test_count": 1}, "problem_id": "p03386", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 8 2\n\nExpected output:\n3\n4\n7\n8\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n#define rep(i, n) for (int i = 0; i < (n); i++)\n\nusing namespace std;\n\nusing ll = long long;\n\n\n\nint main() {\n\n  int a, b, k;\n\n  cin >> a >> b >> k;\n\n  if (b - a + 1 < 2 * k) {\n\n    rep(i, b - a + 1) {\n\n      cout << a + i << endl;\n\n    }\n\n  }\n\n  else {\n\n    rep(i, k) {\n\n      cout << a + i << endl;\n\n    }\n\n    rep(i, k) {\n\n      cout << b - (k - 1) + i << endl;\n\n    }\n\n  }\n\n  return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001138"}
{"label": "pie_cpp_validation_001139", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 1, "hidden_test_count": 1, "problem_id": "p03386", "reference_metric": "runtime_cpu_ns", "reference_value": 1, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001139.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001139", "task_path": "tasks/validation/pie_cpp_validation_001139.json", "visible_test_count": 1}, "problem_id": "p03386", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 8 2\n\nExpected output:\n3\n4\n7\n8\n\n\nProgram:\n```cpp\n#include <iostream>\n\nusing namespace std;\n\n\n\nint main() {\n\n  int A,B,K;\n\n  cin >> A >> B >> K;\n\n  if ( B-A+1 >= 2 * K ) {\n\n    for ( int i = 0; i < K; i++ ) {\n\n      cout << A+i << endl;\n\n    }\n\n    for ( int i = K-1; i>=0;i--) {\n\n      cout << B-i << endl;\n\n    }\n\n  }else {\n\n    for ( int i = A; i <= B; i++ ) {\n\n      cout << i << endl;\n\n    }\n\n  }\n\n  return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001139"}
{"label": "pie_cpp_validation_001160", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 8, "hidden_test_count": 1, "problem_id": "p03386", "reference_metric": "runtime_cpu_ns", "reference_value": 8, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001160.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001160", "task_path": "tasks/validation/pie_cpp_validation_001160.json", "visible_test_count": 1}, "problem_id": "p03386", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 8 2\n\nExpected output:\n3\n4\n7\n8\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <string>\n\n#include <vector>\n\n#include <stdlib.h>\n\n#include <cstdint>\n\n#include <cmath>\n\n#include <algorithm>\n\n#include <float.h>\n\nusing namespace std;\n\n\n\nint main()\n\n{\n\n\tint a, b, k;\n\n\n\n\tcin >> a >> b >> k;\n\n\n\n\tfor( int i = a; i <= b; i++ ) {\n\n\t\tif( i < a + k || b - k < i ) {\n\n\t\t\tcout << i << endl;\n\n\t\t}\n\n\t}\n\n\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001160"}
{"label": "pie_cpp_validation_001228", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 160, "hidden_test_count": 1, "problem_id": "p01137", "reference_metric": "runtime_cpu_ns", "reference_value": 160, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001228.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001228", "task_path": "tasks/validation/pie_cpp_validation_001228.json", "visible_test_count": 1}, "problem_id": "p01137", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n1\n2\n4\n27\n300\n1250\n0\n\nExpected output:\n1\n2\n2\n3\n18\n44\n\n\nProgram:\n```cpp\n#include <iostream>\n\nusing namespace std;\n\n\n\nint main() {\n\n\tint e, x, y, z, min;\n\n\n\n\twhile (cin >> e && e != 0) {\n\n\t\tmin = 999999999;\n\n\t\t\n\n\t\tfor (z = 0; z*z*z <= e; z++) {\n\n\t\t\tfor (y = 0; y*y <= e - z*z*z; y++) {\n\n\t\t\t\t\tx = e - y*y - z*z*z;\n\n\t\t\t\t\n\n\t\t\t\tif (min > x + y + z) {\n\n\t\t\t\t\tmin = x + y + z;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\n\n\t\t}\n\n\n\n\t\tcout << min << endl;\n\n\t}\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001228"}
{"label": "pie_cpp_validation_001237", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 160, "hidden_test_count": 1, "problem_id": "p01137", "reference_metric": "runtime_cpu_ns", "reference_value": 160, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001237.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001237", "task_path": "tasks/validation/pie_cpp_validation_001237.json", "visible_test_count": 1}, "problem_id": "p01137", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n1\n2\n4\n27\n300\n1250\n0\n\nExpected output:\n1\n2\n2\n3\n18\n44\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n#define REP(i,n) for (int i=0;i<(n);i++)\n\n#define ALL(a) (a).begin(),(a).end()\n\n#define RFOR(i,a,b) for (int i=(b)-1;i>=(a);i--)\n\n#define REP(i,n) for (int i=0;i<(n);i++)\n\n#define RREP(i,n) for (int i=(n)-1;i>=0;i--)\n\n#define ll long long\n\n#define ull unsigned long long\n\nint dx[4] = {1, 0, -1, 0};\n\nint dy[4] = {0, 1, 0, -1};\n\n \n\nusing namespace std;\n\n \n\n \n\nint main(){\n\n  int e;\n\n  while(cin>>e,e){\n\n    vector<int> dp(e+1,e);\n\n\t\tvector<int> z;\n\n        for(int i = 0;i*i*i<=e;i++){\n\n\t\t\t\t\tz.push_back(i*i*i);\n\n\t\t\t\t}\n\n\t\t\t\tint z_size = z.size();\n\n\t\t\t\tfor(int i = 0;i<z_size;i++){\n\n\t\t\t\t\tfor(int j = 0;z[i]+j*j<=e;j++){\n\n\t\t\t\t\t\t\tint yy = j*j;\n\n\t\t\t\t\t\t\tdp[z[i]+yy] = min(i+j,dp[z[i]+yy]);\n\n\t\t\t\t\t\t\tdp[e] = min(e-z[i]-yy+dp[z[i]+yy],dp[e]);\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tcout << dp[e] << endl;\n\n  }\n\n  return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001237"}
{"label": "pie_cpp_validation_001240", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 10, "hidden_test_count": 1, "problem_id": "p01137", "reference_metric": "runtime_cpu_ns", "reference_value": 10, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001240.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001240", "task_path": "tasks/validation/pie_cpp_validation_001240.json", "visible_test_count": 1}, "problem_id": "p01137", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n1\n2\n4\n27\n300\n1250\n0\n\nExpected output:\n1\n2\n2\n3\n18\n44\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <cmath>\n\nusing namespace std;\n\nint main() {\n\n    int e;\n\n    while (cin >> e, e) {\n\n        int ret = 1e6;\n\n        for (int z=0; z*z*z<=e; ++z) {\n\n            int y = (int)pow(e - z*z*z, 1.0/2.0);\n\n            int x = e - z*z*z - y*y;\n\n            ret = min(ret, x+y+z);\n\n        }\n\n        cout << ret << endl;\n\n    }\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001240"}
{"label": "pie_cpp_validation_001328", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 7, "hidden_test_count": 1, "problem_id": "p03073", "reference_metric": "runtime_cpu_ns", "reference_value": 7, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001328.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001328", "task_path": "tasks/validation/pie_cpp_validation_001328.json", "visible_test_count": 1}, "problem_id": "p03073", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n000\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n//      https://youtu.be/X_hMZYDMps4\n\n\n\n#include<bits/stdc++.h>\n\nusing namespace std;\n\n\n\ntypedef long long ll;\n\ntypedef long double ld;\n\ntypedef long long unsigned llu;\n\ntypedef pair<long long, long long> pll;\n\nconst long long inf = 2000000000000000000LL;    // 2e18\n\n#define pi                  acos(-1.0)\n\n#define fast                ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)\n\n#define nl                  \"\\n\"\n\n#define ff                  first\n\n#define ss                  second\n\n#define pb                  push_back\n\n#define pf                  push_front\n\n#define all(x)              x.begin(),x.end()\n\n#define debug(x)            cout<<\"debug \"<<x<<\"\\n\"\n\n\n\nint main()\n\n{\n\n    fast;\n\n    ll t,i,j,k,l,m,n,o,p,q,temp,ans=0,flag=0,mod=1000000007,odd=0,even=0;\n\n    string s;\n\n    cin>>s;\n\n    for(i=0;i<s.size();i++){\n\n        if(ll(s[i]-'0')==i%2) odd++;\n\n        if(ll(s[i]-'0')!=i%2) even++;\n\n    }\n\n    cout<<min(odd,even);\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001328"}
{"label": "pie_cpp_validation_001336", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 5, "hidden_test_count": 1, "problem_id": "p03073", "reference_metric": "runtime_cpu_ns", "reference_value": 5, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001336.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001336", "task_path": "tasks/validation/pie_cpp_validation_001336.json", "visible_test_count": 1}, "problem_id": "p03073", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n000\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <set>\n\n#include <map>\n\n#include <vector>\n\n#include <algorithm>\n\n#include <iomanip>\n\n#include <climits>\n\n#include <numeric>\n\n#include <cmath>\n\n#include <queue>\n\n#include <sstream>\n\n#include <string.h>\n\n\n\nusing namespace std;\n\ntypedef long long ll;\n\n\n\nint main()\n\n{\n\n  string s;\n\n  cin >> s;\n\n\n\n  string oz = \"\", zo = \"\";\n\n  for (int i = 0; i < s.size(); i++) {\n\n    if (i % 2 == 0) {\n\n      oz += '0';\n\n      zo += '1';\n\n    } else {\n\n      oz += '1';\n\n      zo += '0';\n\n    }\n\n  }\n\n  \n\n  ll ozc = 0, zoc = 0;\n\n  for (ll i = 0; i < s.size(); i++) {\n\n    if (oz[i] != s[i]) {\n\n      ozc++;\n\n    }\n\n    if (zo[i] != s[i]) {\n\n      zoc++;\n\n    }\n\n  }\n\n  cout << min(ozc, zoc) << endl;\n\n  return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001336"}
{"label": "pie_cpp_validation_001338", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 11, "hidden_test_count": 1, "problem_id": "p03073", "reference_metric": "runtime_cpu_ns", "reference_value": 11, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001338.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001338", "task_path": "tasks/validation/pie_cpp_validation_001338.json", "visible_test_count": 1}, "problem_id": "p03073", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n000\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\nusing ll=long long;\n\nusing vi = vector<int>;\n\nusing vvi = vector<vector<int>>;\n\nusing vl = vector<ll>;\n\nusing vvl = vector<vector<ll>>;\n\n#define all(x) x.begin(),x.end()\n\n#define rep(i,j,n) for (long long i = j; i < (long long)(n); i++)\n\n#define _GLIBCXX_DEBUG\n\n#define MOD 1000000007\n\ntemplate<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }\n\ntemplate<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }\n\n//name[i][j]-> vvl name(i,vl(j))\n\n//map<int,int>mp\n\n//\u4f59\u308a\u3092\u5207\u308a\u4e0a\u3052\u308b =>  (a + b - 1) / b \n\n\n\nsigned main(){\n\n\tstring s; cin>>s;\n\n\tint n=s.size();\n\n\tll ans=0;\n\n\trep(i,0,n-1){\n\n\t\tif(s[i]==s[i+1]){\n\n\t\t\tans++;\n\n\t\t\tif(s[i+1]=='0')s[i+1]='1';\n\n\t\t\telse s[i+1]='0';\n\n\t\t}\n\n\t}\n\n\tcout<<ans<<endl;\n\n\t\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001338"}
{"label": "pie_cpp_validation_001339", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 2, "hidden_test_count": 1, "problem_id": "p03073", "reference_metric": "runtime_cpu_ns", "reference_value": 2, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001339.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001339", "task_path": "tasks/validation/pie_cpp_validation_001339.json", "visible_test_count": 1}, "problem_id": "p03073", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n000\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\n\n\nint main(void){\n\n\tstring S;\n\n\tcin >> S;\n\n\tint a=0,b=0;\n\n\t//0101\u306e\u30d1\u30bf\u30f3\n\n\tfor(int i=0;i<S.size();i++){\n\n\t\tif(i%2==0){\n\n\t\t\tif(S[i]=='1'){\n\n\t\t\t\ta++;\n\n\t\t\t}\n\n\t\t}else{\n\n\t\t\tif(S[i]=='0'){\n\n\t\t\t\ta++;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tfor(int i=0;i<S.size();i++){\n\n\t\tif(i%2==0){\n\n\t\t\tif(S[i]=='0'){\n\n\t\t\t\tb++;\n\n\t\t\t}\n\n\t\t}else{\n\n\t\t\tif(S[i]=='1'){\n\n\t\t\t\tb++;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tcout << min(a,b) << endl;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001339"}
{"label": "pie_cpp_validation_001372", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 5, "hidden_test_count": 1, "problem_id": "p03073", "reference_metric": "runtime_cpu_ns", "reference_value": 5, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001372.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001372", "task_path": "tasks/validation/pie_cpp_validation_001372.json", "visible_test_count": 1}, "problem_id": "p03073", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n000\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <vector>\n\n#include <queue>\n\n#include <deque>\n\n#include <math.h>\n\n#include <stdlib.h>\n\n#include <algorithm>\n\n#define rep(i,n) for (int i = 0; i < (n); ++i)\n\nusing namespace std;\n\ntypedef long long ll;\n\n\n\ntemplate<class T> inline bool chmin(T &a, T b) { if(a > b){ a = b; return true; } return false; }\n\ntemplate<class T> inline bool chmax(T &a, T b) { if(a < b){ a = b; return true; } return false; }\n\n\n\n//INT_MAX\t2,147,483,647 = 2*1.0e9\n\n\n\nint main(){\n\n  string S;\n\n  cin >> S;\n\n\n\n  int len = S.length();\n\n  string S2 = S.substr(0); \n\n\n\n  int ans1 = 0;\n\n  for(int i = 1; i < len; i++){\n\n    if(S[i-1] == S[i]){\n\n      if(S[i] == '1') S[i] = '0';\n\n      else S[i] = '1';\n\n      ans1 += 1;\n\n    }\n\n  }\n\n\n\n  int ans2 = 1;\n\n  if(S2[0] == '1') S2[0] = '0';\n\n  else S2[0] = '1';\n\n  for(int i = 1; i < len; i++){\n\n    if(S2[i-1] == S2[i]){\n\n      if(S2[i] == '1') S2[i] = '0';\n\n      else  S2[i] = '1';\n\n      ans2 += 1;\n\n    }\n\n  }\n\n\n\n  cout << min(ans1, ans2) << endl;\n\n\n\n  return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001372"}
{"label": "pie_cpp_validation_001374", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 11, "hidden_test_count": 1, "problem_id": "p03073", "reference_metric": "runtime_cpu_ns", "reference_value": 11, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001374.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001374", "task_path": "tasks/validation/pie_cpp_validation_001374.json", "visible_test_count": 1}, "problem_id": "p03073", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n000\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\n#define rep(i,n) for (int i = 0; i < (n); i++) \n\n#define all(v) begin(v),end(v)\n\nusing ll = long long;\n\n\n\nint main() {\n\n  string s;cin>>s;\n\n  int cnt1=0,cnt2=0;\n\n  int n=s.size();\n\n  string a,b;\n\n  rep(i,n){\n\n    if(i%2==0){\n\n      a+='0';\n\n      b+='1';\n\n    }\n\n    else {\n\n      a+='1';\n\n      b+='0';\n\n    }\n\n  }\n\n  rep(i,n){\n\n    if(s[i]!=a[i])cnt1++;\n\n    if(s[i]!=b[i])cnt2++;\n\n  }\n\n  cout<<min(cnt1,cnt2)<<endl;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001374"}
{"label": "pie_cpp_validation_001384", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 5, "hidden_test_count": 1, "problem_id": "p03073", "reference_metric": "runtime_cpu_ns", "reference_value": 5, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001384.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001384", "task_path": "tasks/validation/pie_cpp_validation_001384.json", "visible_test_count": 1}, "problem_id": "p03073", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n000\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <cstdio>\n\n#include <algorithm>\n\n#include <iostream>\n\n#include <string>\n\nusing namespace std;\n\nint a,b,c,n,i,j,k;\n\nint str[100005],str2[100005];\n\nint main()\n\n{\n\n    string s1,s2;\n\n    while(cin>>s1)\n\n    {\n\n        s2=s1;\n\n        k=j=0;\n\n        for(i=1;i<s1.length();i++)\n\n        {\n\n            if(s1[i]=='1'&&s1[i-1]=='1')\n\n                {s1[i]='0';k++;}\n\n            if(s1[i]=='0'&&s1[i-1]=='0')\n\n            {\n\n                s1[i]='1';k++;\n\n            }\n\n        }\n\n        for(i=s2.length()-2;i>-1;i--)\n\n        {\n\n            if(s2[i]=='1'&&s2[i+1]=='1')\n\n                {s2[i]='0';j++;}\n\n            if(s2[i]=='0'&&s2[i+1]=='0')\n\n            {\n\n                s2[i]='1';j++;\n\n            }\n\n        }\n\n        printf(\"%d\\n\",min(k,j));\n\n\n\n    }\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001384"}
{"label": "pie_cpp_validation_001388", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 2, "hidden_test_count": 1, "problem_id": "p03073", "reference_metric": "runtime_cpu_ns", "reference_value": 2, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001388.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001388", "task_path": "tasks/validation/pie_cpp_validation_001388.json", "visible_test_count": 1}, "problem_id": "p03073", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n000\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include<bits/stdc++.h>\n\nusing namespace std;\n\n\n\nint main(){\n\n\tstring s;\n\n\tint i, salah1=0, salah2=0;\n\n\tcin>>s;\n\n\tfor(i=0;i<s.length();i++){\n\n\t\tif(i%2>0){\n\n\t\t\tif(s[i]=='0'){\n\n\t\t\t\tsalah1++;\n\n\t\t\t}\n\n\t\t}else{\n\n\t\t\tif(s[i]=='1'){\n\n\t\t\t\tsalah1++;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tfor(i=0;i<s.length();i++){\n\n\t\tif(i%2==0){\n\n\t\t\tif(s[i]=='0'){\n\n\t\t\t\tsalah2++;\n\n\t\t\t}\n\n\t\t}else{\n\n\t\t\tif(s[i]=='1'){\n\n\t\t\t\tsalah2++;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tcout<<min(salah1, salah2)<<endl;\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001388"}
{"label": "pie_cpp_validation_001389", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 2, "hidden_test_count": 1, "problem_id": "p03073", "reference_metric": "runtime_cpu_ns", "reference_value": 2, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001389.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001389", "task_path": "tasks/validation/pie_cpp_validation_001389.json", "visible_test_count": 1}, "problem_id": "p03073", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n000\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include<iostream>\n\n\n\nusing namespace std;\n\n\n\nint main()\n\n{\n\n\tint sum=0,k;\n\n\tstring s;\n\n\tcin>>s;\n\n\tfor(int i=0;i<s.size();i++)\n\n\t{\n\n\t\tif(s[i]=='0'+i%2) sum++;\n\n\t}\n\n\tk=s.size()-sum;\n\n\tsum>k?sum=k:sum=sum;\n\n\tcout<<sum;\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001389"}
{"label": "pie_cpp_validation_001403", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 2, "hidden_test_count": 1, "problem_id": "p03073", "reference_metric": "runtime_cpu_ns", "reference_value": 2, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001403.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001403", "task_path": "tasks/validation/pie_cpp_validation_001403.json", "visible_test_count": 1}, "problem_id": "p03073", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n000\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n\n\nusing namespace std;\n\n\n\nint notnumber(int a) {\n\n  if(a == 48) return 49;\n\n  else return 48;\n\n}\n\n\n\nint main() {\n\n  string s;\n\n  cin >> s;\n\n\n\n  int cont = 0;\n\n  int ant = s[0];\n\n\n\n  for(int i = 1; i < s.length(); i++) {\n\n    if(s[i] == ant) {\n\n      ant = notnumber(s[i]);\n\n      cont++;\n\n    } else ant = s[i];\n\n  }\n\n\n\n  ant = s[s.length()-1];\n\n  int cont2 = 0;\n\n\n\n  for(int i = s.length()-2; i >= 0; i--) {\n\n    if(s[i] == ant) {\n\n      ant = notnumber(s[i]);\n\n      cont2++;\n\n    } else ant = s[i];\n\n  }\n\n\n\n  cout << min(cont, cont2) << endl;\n\n\n\n  return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001403"}
{"label": "pie_cpp_validation_001404", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 1, "hidden_test_count": 1, "problem_id": "p03073", "reference_metric": "runtime_cpu_ns", "reference_value": 1, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001404.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001404", "task_path": "tasks/validation/pie_cpp_validation_001404.json", "visible_test_count": 1}, "problem_id": "p03073", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n000\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n\n\n// # DEFINES # //\n\n#define ll long long\n\n#define M (ll)1e9+7\n\n#define EPS 1e-9\n\n\n\nusing namespace std;\n\n\n\nint main(){\n\n    ios::sync_with_stdio(0);\n\n    cin.tie(0);\n\n    cout.tie(0);\n\n\n\n    string s;\n\n\n\n    cin >> s;\n\n\n\n    size_t n = s.size();\n\n    \n\n    // primeiro 1\n\n    int n1 = 0;\n\n    for(int i = 1; i <= n; i++) {\n\n        if(i % 2 == 1 && s[i-1] != '1')\n\n            n1++;\n\n        else if(i % 2 == 0 && s[i-1] != '0')\n\n            n1++;\n\n    }\n\n\n\n    // primeiro 0\n\n    int n2 = 0;    \n\n    for(int i = 1; i <= n; i++) {\n\n        if(i % 2 == 1 && s[i-1] != '0')\n\n            n2++;\n\n        else if(i % 2 == 0 && s[i-1] != '1')\n\n            n2++;\n\n    }\n\n\n\n    if(n == 1)\n\n        cout << 0 << endl;\n\n    else \n\n        cout << min(n1, n2) << endl;\n\n\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001404"}
{"label": "pie_cpp_validation_001405", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 9, "hidden_test_count": 1, "problem_id": "p03073", "reference_metric": "runtime_cpu_ns", "reference_value": 9, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001405.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001405", "task_path": "tasks/validation/pie_cpp_validation_001405.json", "visible_test_count": 1}, "problem_id": "p03073", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n000\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n\n\nusing namespace std;\n\n\n\nint main(){\n\n    string s, s1, s0;\n\n    int cont0 = 0, cont1 = 0;\n\n\n\n    cin >> s;\n\n\n\n    for(int i = 0; i < s.length(); i++){\n\n        if(i == 0){\n\n            s1 = '1';\n\n            s0 = '0';\n\n        }else{\n\n            if(s1[i-1] == '1') s1 = s1 + '0';\n\n            else s1 = s1 + '1';\n\n\n\n            if(s0[i-1] == '1') s0 = s0 + '0';\n\n            else s0 = s0 + '1';\n\n        }\n\n    }\n\n\n\n    for(int i = 0; i < s.length(); i++){\n\n        if(s[i] != s1[i])   cont1++;\n\n        \n\n        if(s[i] != s0[i])   cont0++;\n\n    }\n\n\n\n    cout << min(cont1, cont0) << endl ;\n\n\n\n    return 0;\n\n\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001405"}
{"label": "pie_cpp_validation_001407", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 9, "hidden_test_count": 1, "problem_id": "p03073", "reference_metric": "runtime_cpu_ns", "reference_value": 9, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001407.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001407", "task_path": "tasks/validation/pie_cpp_validation_001407.json", "visible_test_count": 1}, "problem_id": "p03073", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n000\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n\n\n#include<bits/stdc++.h>\n\n#define fr(i,j,n)   for(int i=j;i<n;i++)\n\n#define pb          push_back\n\n#define rf(i,j,p)   for(int i=p;i>=j;i--)\n\n#define vi          vector<int>\n\n#define vll         vector<long long>\n\n#define ll          long long\n\n#define hmm         \"\\n\"\n\n#define sp          \" \"\n\n#define srt(v)      sort(v.begin(), v.end());\n\n#define down        cout<<hmm;\n\n#define faaast      ios_base::sync_with_stdio(0);cin.tie(nullptr);\n\nusing namespace std;\n\nint main()\n\n{\n\n  string s ; cin >> s ;\n\n  string t=\"\", tt=\"\" ;\n\n  fr(i,0,s.size())\n\n  {\n\n      if(i%2==0)t+=\"0\";\n\n      else t+=\"1\";\n\n  }\n\n  fr(i,0,s.size())\n\n  {\n\n      if(i%2==0)tt+=\"1\";\n\n      else tt+=\"0\";\n\n  }\n\n  int a1=0, a2=0;\n\n  fr(i,0,s.size())\n\n  {\n\n      if(t[i]!=s[i])a1++;\n\n      if(tt[i]!=s[i])a2++;\n\n  }\n\n  cout<<min(a1,a2)<<hmm;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001407"}
{"label": "pie_cpp_validation_001411", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 6, "hidden_test_count": 1, "problem_id": "p03073", "reference_metric": "runtime_cpu_ns", "reference_value": 6, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001411.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001411", "task_path": "tasks/validation/pie_cpp_validation_001411.json", "visible_test_count": 1}, "problem_id": "p03073", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n000\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <algorithm>\n\n#include <string>\n\n\n\nusing namespace std;\n\n\n\n\n\nint main()\n\n{\n\n\tstring S;\n\n\tcin >> S;\n\n\tstring S_temp(S.size(), '0');\n\n\tfor(int i = 0; i < S.size(); i++)\n\n\t{\n\n\t\tif(i % 2)\n\n\t\t{\n\n\t\t\tS_temp.at(i) = '1';\n\n\t\t}\n\n\t}\n\n\n\n\tint answer = 0;\n\n\n\n\tfor(int i = 0; i < S.size(); i++)\n\n\t{\n\n\t\tif(S.at(i) != S_temp.at(i))\n\n\t\t{\n\n\t\t\tanswer++;\n\n\t\t}\n\n\t}\n\n\n\n\tif(S.size() - answer < answer)\n\n\t{\n\n\t\tanswer = S.size() - answer;\n\n\t}\n\n\n\n\tcout << answer << endl;\n\n\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001411"}
{"label": "pie_cpp_validation_001842", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 35, "hidden_test_count": 1, "problem_id": "p03291", "reference_metric": "runtime_cpu_ns", "reference_value": 35, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001842.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001842", "task_path": "tasks/validation/pie_cpp_validation_001842.json", "visible_test_count": 1}, "problem_id": "p03291", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nA??C\n\nExpected output:\n8\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\n\n\ntypedef long long ll;\n\n\n\n\n\n#define REP(i, n) for(ll i = 0; i < n; i++)\n\n#define REPR(i, n) for(ll i = n; i >= 0; i--)\n\n#define FOR(i, m, n) for(ll i = m; i < n; i++)\n\n#define ALL(obj) (obj).begin(), (obj).end()\n\n#define INF 1e9\n\n#define LINF 1e18\n\n\n\n\n\nconst int MOD = 1e9+7;\n\nconst int MAXR = 510000;\n\n\n\ntemplate<ll mod> class modint{\n\npublic:\n\n    ll val=0;\n\n    //\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\n\n    modint(ll x=0){while(x<0)x+=mod;val=x%mod;}\n\n    //\u30b3\u30d4\u30fc\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\n\n    modint(const modint &r){val=r.val;}\n\n    //\u7b97\u8853\u6f14\u7b97\u5b50\n\n    modint operator -(){return modint(-val);} //\u5358\u9805\n\n    modint operator +(const modint &r){return modint(*this)+=r;}\n\n    modint operator -(const modint &r){return modint(*this)-=r;}\n\n    modint operator *(const modint &r){return modint(*this)*=r;}\n\n    modint operator /(const modint &r){return modint(*this)/=r;}\n\n    //\u4ee3\u5165\u6f14\u7b97\u5b50\n\n    modint &operator +=(const modint &r){\n\n        val+=r.val;\n\n        if(val>=mod)val-=mod;\n\n        return *this;\n\n    }\n\n    modint &operator -=(const modint &r){\n\n        if(val<r.val)val+=mod;\n\n        val-=r.val;\n\n        return *this;\n\n    }\n\n    modint &operator *=(const modint &r){\n\n        val=val*r.val%mod;\n\n        return *this;\n\n    }\n\n    modint &operator /=(const modint &r){\n\n        ll a=r.val,b=mod,u=1,v=0;\n\n        while(b){\n\n            ll t=a/b;\n\n            a-=t*b;swap(a,b);\n\n            u-=t*v;swap(u,v);\n\n        }\n\n        val=val*u%mod;\n\n        if(val<0)val+=mod;\n\n        return *this;\n\n    }\n\n    //\u7b49\u4fa1\u6bd4\u8f03\u6f14\u7b97\u5b50\n\n    bool operator ==(const modint& r){return this->val==r.val;}\n\n    bool operator <(const modint& r){return this->val<r.val;}\n\n    bool operator !=(const modint& r){return this->val!=r.val;}\n\n};\n\n\n\nusing mint = modint<MOD>;\n\n\n\n//\u5165\u51fa\u529b\u30b9\u30c8\u30ea\u30fc\u30e0\n\nistream &operator >>(istream &is,mint& x){//x\u306bconst\u4ed8\u3051\u306a\u3044\n\n    ll t;is >> t;\n\n    x=t;\n\n    return (is);\n\n}\n\nostream &operator <<(ostream &os,const mint& x){\n\n    return os<<x.val;\n\n}\n\n\n\n//\u7d2f\u4e57\n\nmint modpow(const mint &a,ll n){\n\n    if(n<=0)return 1;\n\n    mint t=modpow(a,n/2);\n\n    t=t*t;\n\n    if(n&1)t=t*a;\n\n    return t;\n\n}\n\n\n\n//\u4e8c\u9805\u4fc2\u6570\u306e\u8a08\u7b97\n\nmint fac[MAXR+1],finv[MAXR+1],inv[MAXR+1];\n\n//\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210\n\nvoid com_init() {\n\n    fac[0]=fac[1]=1;\n\n    finv[0]=finv[1]=1;\n\n    inv[1]=1;\n\n    FOR(i,2,MAXR){\n\n        fac[i]=fac[i-1]*mint(i);\n\n        inv[i]=-inv[MOD%i]*mint(MOD/i);\n\n        finv[i]=finv[i-1]*inv[i];\n\n    }\n\n}\n\n//\u6f14\u7b97\u90e8\u5206\n\nmint com(ll n,ll k){\n\n    if(n<k)return 0;\n\n    if(n<0)return 0;\n\n    if(k==0) return 1;\n\n    return fac[n]*finv[k]*finv[n-k];\n\n}\n\n\n\nint main() {\n\n    string S; cin >> S;\n\n    int N = S.size();\n\n    vector<ll> q_front(N,0), q_back(N,0);\n\n    vector<ll> a_cnt(N,0), c_cnt(N,0);\n\n    REP(i,N){\n\n        if(S[i]=='A') a_cnt[i]+=1;\n\n        if(S[i]=='?') q_front[i]+=1;\n\n\n\n        if(i!=N-1){\n\n            a_cnt[i+1] += a_cnt[i];\n\n            q_front[i+1] += q_front[i];\n\n        }\n\n    }\n\n    REPR(i,N-1){\n\n        if(S[i]=='C') c_cnt[i]+=1;\n\n        if(S[i]=='?') q_back[i]+=1;\n\n\n\n        if(i!=0){\n\n            c_cnt[i-1] += c_cnt[i];\n\n            q_back[i-1] += q_back[i];\n\n        }\n\n    }\n\n\n\n    mint ans = 0;\n\n    FOR(i,1,N-1){\n\n        if(S[i]=='B' || S[i]=='?'){\n\n            mint a = a_cnt[i-1];\n\n            mint x = q_front[i-1];\n\n            mint front = (a+x)*modpow(3,q_front[i-1]) - (mint)2*x*modpow(3,q_front[i-1]-1);\n\n\n\n            mint c = c_cnt[i+1];\n\n            mint y = q_back[i+1];\n\n            mint back = (c+y)*modpow(3,q_back[i+1]) - (mint)2*y*modpow(3,q_back[i+1]-1);\n\n            ans +=  front * back;\n\n            //cout << i << \", \" << front << \", \" << back << endl;\n\n        }\n\n    }\n\n\n\n    cout << ans << endl;\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001842"}
{"label": "pie_cpp_validation_001856", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 7, "hidden_test_count": 1, "problem_id": "p03291", "reference_metric": "runtime_cpu_ns", "reference_value": 7, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001856.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001856", "task_path": "tasks/validation/pie_cpp_validation_001856.json", "visible_test_count": 1}, "problem_id": "p03291", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nA??C\n\nExpected output:\n8\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n\n\nusing namespace std;\n\nusing ll =long long;\n\n#define SORT(a) sort((a).begin(),(a).end())\n\n#define rSORT(a) reverse((a).begin(),(a).end())\n\n#define For(i, a, b)    for(int i = (a) ; i < (b) ; ++i)\n\n#define rep(i, n)       For(i, 0, n)\n\n#define debug(x)  cerr << #x << \" = \" << (x) << endl;\n\ntemplate<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; }\n\ntemplate<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }\n\nvoid coY() {cout <<\"Yes\"<<endl;}\n\nvoid coN(){cout <<\"No\"<<endl;}\n\nconst ll INF = 1LL << 60;\n\nconst int mod = 1e9+7;\n\n//Write From this Line\n\n\n\nll dp[100100][4] ;\n\nint main()\n\n{\n\n\tstring s;\n\n\tcin >> s;\n\n\tll n = s.size() ;\n\n\trep(i,100100){\n\n\t\trep(j,4){\n\n\t\t\tdp[i][j] = 0;\n\n\t\t}\n\n\t}\n\n\tdp[0][0] = 1 ;\n\n\trep(i,n){\n\n\t\tll num = s[i] - 'A'+1;\n\n\t\t//\u72b6\u614bnum\u3092\u66f4\u65b0\u3059\u308b\u3002\n\n\t\trep(j,4) dp[i+1][j] = dp[i][j];\n\n\n\n\t\tif(s[i]=='?'){\n\n\t\t\trep(j,4){\n\n\t\t\t\tdp[i+1][j] *= 3;\n\n\t\t\t\tdp[i+1][j] %= mod;\n\n\t\t\t}\n\n\t\t\tfor(ll j = 1 ; j <= 3 ; j++){\n\n\t\t\t\t dp[i+1][j] += (dp[i][j-1]);\n\n\t\t\t\t dp[i+1][j] %= mod;\n\n\t\t\t}\n\n\t\t} else {\n\n\t\t\tdp[i+1][num] += dp[i][num-1] ;\n\n\t\t\tdp[i+1][num]%= mod;\n\n\t\t}\n\n\t} \n\n\tcout << dp[n][3] << endl;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001856"}
{"label": "pie_cpp_validation_001862", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 13, "hidden_test_count": 1, "problem_id": "p03291", "reference_metric": "runtime_cpu_ns", "reference_value": 13, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001862.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001862", "task_path": "tasks/validation/pie_cpp_validation_001862.json", "visible_test_count": 1}, "problem_id": "p03291", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nA??C\n\nExpected output:\n8\n\n\nProgram:\n```cpp\n#include<bits/stdc++.h>\n\nusing namespace std;\n\ntypedef long long ll;\n\ntypedef long double ld;\n\n#define rep(i, n) for (ll i = 0; i < n; i++)\n\n#define FOR(i, a, b) for (ll i = a; i < b; i++)\n\n#define len(v) ll(v.size())\n\n#define fi first\n\n#define se second\n\n\n\ntemplate <class T>\n\nvoid cout_vec(const vector<T> &vec){\n\n  for(auto itr:vec) cout<<itr<<' ';\n\n  cout<<endl;\n\n}\n\n\n\ntypedef pair<ll,ll> P;\n\nconst ll mod=1e9+7;\n\nconst ll inf=1e15;\n\n\n\nint main(){\n\n  cin.tie(0);\n\n  ios::sync_with_stdio(false);\n\n  string s;\n\n  cin>>s;\n\n  int n=s.size();\n\n  vector<vector<ll>> dp(n+1,vector<ll>(4,0));\n\n  dp[0][0]=1;\n\n  rep(i,n)rep(j,4){\n\n    if(j==3){\n\n      if(s[i]=='?'){\n\n        (dp[i+1][j]+=(3*dp[i][j])%mod)%=mod;\n\n      }else{\n\n        (dp[i+1][j]+=dp[i][j])%=mod;\n\n      }\n\n    }else if(j==2){\n\n      if(s[i]=='?'){\n\n        (dp[i+1][j+1]+=dp[i][j])%=mod;\n\n        (dp[i+1][j]+=(3*dp[i][j])%mod)%=mod;\n\n      }else if(s[i]=='C'){\n\n        (dp[i+1][j+1]+=dp[i][j])%=mod;\n\n        (dp[i+1][j]+=dp[i][j])%=mod;\n\n      }else{\n\n        (dp[i+1][j]+=dp[i][j])%=mod;\n\n      }\n\n    }else if(j==1){\n\n      if(s[i]=='?'){\n\n        (dp[i+1][j+1]+=dp[i][j])%=mod;\n\n        (dp[i+1][j]+=(3*dp[i][j])%mod)%=mod;\n\n      }else if(s[i]=='B'){\n\n        (dp[i+1][j+1]+=dp[i][j])%=mod;\n\n        (dp[i+1][j]+=dp[i][j])%=mod;\n\n      }else{\n\n        (dp[i+1][j]+=dp[i][j])%=mod;\n\n      }\n\n    }else{\n\n      if(s[i]=='?'){\n\n        (dp[i+1][j+1]+=dp[i][j])%=mod;\n\n        (dp[i+1][j]+=(3*dp[i][j])%mod)%=mod;\n\n      }else if(s[i]=='A'){\n\n        (dp[i+1][j+1]+=dp[i][j])%=mod;\n\n        (dp[i+1][j]+=dp[i][j])%=mod;\n\n      }else{\n\n        (dp[i+1][j]+=dp[i][j])%=mod;\n\n      }\n\n    }\n\n  }\n\n  cout<<dp[n][3]<<endl;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001862"}
{"label": "pie_cpp_validation_001887", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 6, "hidden_test_count": 1, "problem_id": "p03291", "reference_metric": "runtime_cpu_ns", "reference_value": 6, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001887.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001887", "task_path": "tasks/validation/pie_cpp_validation_001887.json", "visible_test_count": 1}, "problem_id": "p03291", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nA??C\n\nExpected output:\n8\n\n\nProgram:\n```cpp\n/***********************\n\n*  Author: xuziyuan    * \n\n***********************/\n\n\n\n#include <bits/stdc++.h>\n\n\n\n#define rt0 return 0\n\n#define rep(i,n) for(int i=0;i<n;i++)\n\n#define repn(i,n) for(int i=1;i<=n;i++)\n\n#define replet(c) for(char c='a';c<='z';c++) \n\n#define LL long long\n\n#define pii pair <int,int>\n\n#define pb push_back\n\n#define fi first\n\n#define se second\n\n#define mpr make_pair\n\n#define sqr(a) ((a)*(a))\n\n\n\nusing namespace std;\n\n\n\nconst LL MOD=1e9+7;\n\n\n\nstring s;\n\nLL dpa[100010],dpc[100010],dpq[100010],pw[100010],q,ans=0;\n\n\n\nint main()\n\n{\n\n\tpw[0]=1;\n\n\trepn(i,100005) pw[i]=pw[i-1]*3%MOD;\n\n\tcin>>s;\n\n\trepn(i,s.size())\n\n\t{\n\n\t\tif(s[i-1]=='?') q++;\n\n\t\tdpa[i]=dpa[i-1];\n\n\t\tdpc[i]=dpc[i-1];\n\n\t\tdpq[i]=dpq[i-1];\n\n\t\tif(s[i-1]=='A') dpa[i]++;\n\n\t\tif(s[i-1]=='C') dpc[i]++;\n\n\t\tif(s[i-1]=='?') dpq[i]++;\n\n\t}\n\n\trep(i,s.size())\n\n\t{\n\n\t\tLL fa=dpa[i]-dpa[0],fq=dpq[i]-dpq[0],bc=dpc[s.size()]-dpc[i+1],bq=dpq[s.size()]-dpq[i+1];\n\n\t\tif(s[i]=='B')\n\n\t\tans=(ans+fa*bc*pw[q]%MOD+fa*bq*(q==0 ? 0:pw[q-1])%MOD+fq*bc*(q==0 ? 0:pw[q-1])%MOD\n\n\t\t+fq*bq*(q-2<0 ? 0:pw[q-2])%MOD)%MOD;\n\n\t\tif(s[i]=='?')\n\n\t\tans=(ans+fa*bc*(q==0 ? 0:pw[q-1])%MOD+fa*bq*(q-2<0 ? 0:pw[q-2])%MOD+fq*bc*(q-2<0 ? 0:pw[q-2])%MOD\n\n\t\t+fq*bq*(q-3<0 ? 0:pw[q-3])%MOD)%MOD;\n\n\t}\n\n\tcout<<ans<<endl;\n\n\trt0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001887"}
{"label": "pie_cpp_validation_001906", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 11, "hidden_test_count": 1, "problem_id": "p03291", "reference_metric": "runtime_cpu_ns", "reference_value": 11, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001906.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001906", "task_path": "tasks/validation/pie_cpp_validation_001906.json", "visible_test_count": 1}, "problem_id": "p03291", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nA??C\n\nExpected output:\n8\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n\n\n#define rep(i,n) for(int i=0;i<(int)(n);i++)\n\n#define FOR(i,n,m) for(int i=(int)(n); i<=(int)(m); i++)\n\n#define RFOR(i,n,m) for(int i=(int)(n); i>=(int)(m); i--)\n\n#define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++)\n\n#define RITR(x,c) for(__typeof(c.rbegin()) x=c.rbegin();x!=c.rend();x++)\n\n#define setp(n) fixed << setprecision(n)\n\n\n\ntemplate<class T> bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }\n\ntemplate<class T> bool chmin(T &a, const T &b) { if (a>b) { a=b; return 1; } return 0; }\n\n\n\n#define ll long long\n\n#define vll vector<ll>\n\n#define vi vector<int>\n\n#define pll pair<ll,ll>\n\n#define pi pair<int,int>\n\n\n\n#define all(a) (a.begin()),(a.end())\n\n#define rall(a) (a.rbegin()),(a.rend())\n\n#define fi first\n\n#define se second\n\n#define pb push_back\n\n#define mp make_pair\n\n#define ins insert\n\n\n\nusing namespace std;\n\n\n\n//-------------------------------------------------\n\n//--ModInt\n\n//-------------------------------------------------\n\nconst ::std::uint_fast64_t MOD = 1e9+7;\n\n\n\nclass mint\n\n{\n\nprivate:\n\n    using value_type = ::std::uint_fast64_t;\n\n    value_type n;\n\npublic:\n\n    mint():n(0){}\n\n    mint(::std::int_fast64_t _n):n(_n<0 ? MOD-(-_n)%MOD : _n%MOD){}\n\n    mint(const mint &m):n(m.n){}\n\n\n\n    friend ::std::ostream& operator<<(::std::ostream &os, const mint &a){\n\n\t\treturn os << a.n;\n\n\t}\n\n    friend ::std::istream& operator>>(::std::istream &is, mint &a){\n\n        value_type temp; is>>temp;\n\n        a = mint(temp);\n\n        return is;\n\n    }\n\n\n\n    mint& operator+=(const mint &m){n+=m.n; n=(n<MOD)?n:n-MOD; return *this;}\n\n    mint& operator-=(const mint &m){n+=MOD-m.n; n=(n<MOD)?n:n-MOD; return *this;}\n\n    mint& operator*=(const mint &m){n=n*m.n%MOD; return *this;}\n\n    mint& operator/=(const mint &m){return *this*=m.inv();}\n\n    mint& operator++(){return *this+=1;}\n\n    mint& operator--(){return *this-=1;}\n\n\n\n    mint operator+(const mint &m) const {return mint(*this)+=m;}\n\n    mint operator-(const mint &m) const {return mint(*this)-=m;}\n\n    mint operator*(const mint &m) const {return mint(*this)*=m;}\n\n    mint operator/(const mint &m) const {return mint(*this)/=m;}\n\n    mint operator++(int){mint t(*this); *this+=1; return t;}\n\n    mint operator--(int){mint t(*this); *this-=1; return t;}\n\n\n\n    mint operator==(const mint &m) const {return n==m.n;}\n\n    mint operator!=(const mint &m) const {return n!=m.n;}\n\n    mint operator-() const {return mint(MOD-n);}\n\n\n\n    mint pow(value_type b) const {\n\n        mint ret(1), m(*this);\n\n        while(b){\n\n            if (b & 1) ret*=m;\n\n            m*=m;\n\n            b>>=1;\n\n        }\n\n        return ret;\n\n    }\n\n\n\n    mint inv() const {return pow(MOD-2);}\n\n};\n\n\n\n//-------------------------------------------------\n\n\n\nint main(void)\n\n{\n\n    cin.tie(0);\n\n    ios::sync_with_stdio(false);\n\n    string s; cin>>s;\n\n    int n=s.size();\n\n    int A=0,C=0,LQ=0,RQ=0;\n\n    rep(i,n){\n\n        if (s[i]=='C') C++;\n\n        if (s[i]=='?') RQ++;\n\n    }\n\n    mint ans=0;\n\n    rep(i,n-1){\n\n        if (i>0 && s[i-1]=='A') A++;\n\n        if (i>0 && s[i-1]=='?') LQ++;\n\n        if (s[i]=='C') C--;\n\n        if (s[i]=='?') RQ--;\n\n        if (s[i]=='A'||s[i]=='C') continue;\n\n        mint sumA = mint(3).pow(LQ)*A;\n\n        if (LQ>0) sumA+=mint(3).pow(LQ-1)*LQ;\n\n        mint sumC = mint(3).pow(RQ)*C;\n\n        if (RQ>0) sumC+=mint(3).pow(RQ-1)*RQ;\n\n        ans+=sumA*sumC;\n\n    }\n\n    cout<<ans<<\"\\n\";\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001906"}
{"label": "pie_cpp_validation_001907", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 7, "hidden_test_count": 1, "problem_id": "p03291", "reference_metric": "runtime_cpu_ns", "reference_value": 7, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001907.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001907", "task_path": "tasks/validation/pie_cpp_validation_001907.json", "visible_test_count": 1}, "problem_id": "p03291", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nA??C\n\nExpected output:\n8\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <algorithm>\n\n#include <vector>\n\n#include <math.h>\n\n#include <string>\n\n#define rep(i,s,n)for(int i = s;i<n;i++)\n\n#define rep_r(i,s,n)for(int i = n-1;i>=0;i--)\n\n#define repe(i,s,n)for(int i = s;i<=n;i++)\n\nusing namespace std;\n\ntypedef long long ll;\n\nstatic const ll MOD = 1000000007;// 1e9 + 7;\n\n\n\nll a[100001];\n\nll aq[100001];\n\nll c[100001];\n\nll cq[100001];\n\n\n\nll Pow(ll n, ll p) {\n\n\tif (p == 0)return 1;\n\n\tif (p == 1)return n;\n\n\tll t = Pow(n, p / 2);\n\n\tif (p & 1) return (t * t % MOD) * n % MOD;\n\n\telse return t * t % MOD;\n\n}\n\nstring s;\n\nint main() {\n\n\tcin >> s;\n\n\n\n\trep(i, 0, s.size()) {\n\n\t\tif (s[i] == 'A') {\n\n\t\t\ta[i]++;\n\n\t\t\tif (i > 0) {\n\n\t\t\t\ta[i] += a[i - 1];\n\n\t\t\t\taq[i] = aq[i - 1];\n\n\t\t\t}\n\n\t\t}\n\n\t\telse if (s[i] == '?') {\n\n\t\t\taq[i]++;\n\n\t\t\tif (i > 0) {\n\n\t\t\t\taq[i] += aq[i - 1];\n\n\t\t\t\ta[i] = a[i - 1];\n\n\t\t\t}\n\n\t\t}\n\n\t\telse {\n\n\t\t\ta[i] = a[i - 1];\n\n\t\t\taq[i] = aq[i - 1];\n\n\t\t}\n\n\t}\n\n\n\n\trep_r(i, 0, s.size()) {\n\n\t\tif (s[i] == 'C') {\n\n\t\t\tc[i]++;\n\n\t\t\tif (i < s.size() - 1) {\n\n\t\t\t\tc[i] += c[i + 1];\n\n\t\t\t\tcq[i] = cq[i + 1];\n\n\t\t\t}\n\n\t\t}\n\n\t\telse if (s[i] == '?') {\n\n\t\t\tcq[i]++;\n\n\t\t\tif (i < s.size() - 1) {\n\n\t\t\t\tcq[i] += cq[i + 1];\n\n\t\t\t\tc[i] = c[i + 1];\n\n\t\t\t}\n\n\t\t}\n\n\t\telse {\n\n\t\t\tc[i] = c[i + 1];\n\n\t\t\tcq[i] = cq[i + 1];\n\n\t\t}\n\n\t}\n\n\n\n\tll ans = 0;\n\n\trep(i, 1, s.size() - 1) {\n\n\t\tll A,C;\n\n\n\n\t\tif (s[i] == 'B' || s[i] == '?') {\n\n\t\t\tA = a[i - 1] * Pow(3,aq[i-1]) % MOD; // select A on l\n\n\t\t\tif (aq[i - 1] > 0) {\n\n\t\t\t\tA += aq[i - 1] * Pow(3, aq[i - 1] - 1) % MOD; // select ? on l\n\n\t\t\t}\n\n\n\n\t\t\tC = c[i + 1] * Pow(3, cq[i + 1]) % MOD; // select C on r\n\n\t\t\tif (cq[i + 1] > 0) {\n\n\t\t\t\tC += cq[i+1] * Pow(3, cq[i + 1] - 1) % MOD;\n\n\t\t\t}\n\n\n\n\t\t\tans += A * C % MOD;\n\n\t\t}\n\n\t}\n\n\tcout << ans % MOD << endl;\n\n\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001907"}
{"label": "pie_cpp_validation_001928", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 5, "hidden_test_count": 1, "problem_id": "p03291", "reference_metric": "runtime_cpu_ns", "reference_value": 5, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001928.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001928", "task_path": "tasks/validation/pie_cpp_validation_001928.json", "visible_test_count": 1}, "problem_id": "p03291", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nA??C\n\nExpected output:\n8\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n\n\n#define rep(i,n) for(long long int (i)=0;(i)<(int)(n);(i)++)\n\n#define rrep(i,a,b) for(long long int i=(a);i<(b);i++)\n\n#define rrrep(i,a,b) for(long long int i=(a);i>=(b);i--)\n\n#define all(v) (v).begin(), (v).end()\n\n#define pb(q) push_back(q)\n\n#define Abs(a,b) max(a,b)-min(a,b)\n\n#define YES(condition) if(condition){cout << \"YES\" << endl;}else{cout << \"NO\" << endl;}\n\n#define Yes(condition) if(condition){cout << \"Yes\" << endl;}else{cout << \"No\" << endl;}\n\n#define Cout(x) cout<<(x)<<endl\n\n#define POSSIBLE(condition) if(condition){cout << \"POSSIBLE\" << endl;}else{cout << \"IMPOSSIBLE\" << endl;}\n\n#define Possible(condition) if(condition){cout << \"Possible\" << endl;}else{cout << \"Impossible\" << endl;}\n\n#define possible(condition) if(condition){cout << \"possible\" << endl;}else{cout << \"impossible\" << endl;}\n\n#define Size(n) (n).size()\n\n\n\ntypedef long long ll;\n\n\n\n\n\nusing namespace std;\n\n\n\nconst int INF = 1e9,MOD = 1e9 + 7,ohara = 1e6;\n\nconst ll LINF = 1e18;\n\n\n\n\n\nlong long int n,cnt=0,ans=0,a,b,c,d,cmp,cmpp,m,h,w,x,y,sum=0,pos,dp[100002][4];\n\nint dy[]={1,0,-1,0};\n\nint dx[]={0,1,0,-1};\n\nstring alph(\"ABC\"),s;\n\nbool fl;\n\nstruct edge{int to,cost;};\n\n\n\n//-------------------------\u2193\u2193\u2193\u2193\u2193\u2193------------------------\n\n\n\nint main(void){\n\n       cin.tie(0);\n\n    ios::sync_with_stdio(false);\n\n\n\n      \n\n      cin>>s;\n\n      dp[Size(s)][3]=1;\n\n      rrrep(i,Size(s)-1,0){\n\n        rrrep(j,3,0){\n\n          if(j==3){\n\n        if(s[i]=='?'){\n\n        dp[i][3]=dp[i+1][3]*3;\n\n        }\n\n        else{\n\n          dp[i][3]=dp[i+1][3];\n\n        }\n\n          }\n\n          else{\n\n            if(s[i]=='?'){\n\n            dp[i][j]=dp[i+1][j]*3+dp[i+1][j+1];\n\n            }\n\n            else if(alph[j]==s[i]){\n\n              dp[i][j]=dp[i+1][j]+dp[i+1][j+1];\n\n            }\n\n            else{\n\n              dp[i][j]=dp[i+1][j];\n\n            }\n\n          }\n\n          dp[i][j]%=MOD;\n\n        }\n\n      }\n\n      Cout(dp[0][0]);\n\n     \n\n\n\n       \n\nreturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001928"}
{"label": "pie_cpp_validation_001931", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 5, "hidden_test_count": 1, "problem_id": "p03291", "reference_metric": "runtime_cpu_ns", "reference_value": 5, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001931.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001931", "task_path": "tasks/validation/pie_cpp_validation_001931.json", "visible_test_count": 1}, "problem_id": "p03291", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nA??C\n\nExpected output:\n8\n\n\nProgram:\n```cpp\n#include \"bits/stdc++.h\"\n\n// Begin Header {{{\n\n#define all(x)      x.begin(), x.end()\n\n#define SIZE(x)     static_cast<i64>(x.size())\n\n#define rep(i,n)    for (i64 i = 0, i ## _limit = (n); i < i ## _limit; ++i)\n\n#define reps(i,s,t) for (i64 i = (s), i ## _limit = (t); i <= i ## _limit; ++i)\n\n#define repr(i,s,t) for (i64 i = (s), i ## _limit = (t); i >= i ## _limit; --i)\n\n\n\n#ifdef DBG\n\n#define trace(...) _trace(#__VA_ARGS__, __VA_ARGS__);\n\n#else\n\n#define trace(...)\n\n#endif\n\n\n\nusing namespace std;\n\nusing i64 = int_fast64_t;\n\nusing pii = pair<i64, i64>;\n\ntemplate<class T, class U>inline bool chmax(T &a, const U &b){return b>a && (a=b, true);}\n\ntemplate<class T, class U>inline bool chmin(T &a, const U &b){return b<a && (a=b, true);}\n\nconstexpr int INF  = 0x3f3f3f3f;\n\nconstexpr i64 LINF = 0x3f3f3f3f3f3f3f3fLL;\n\n\n\ntemplate<class T>\n\nostream& operator<< (ostream &os, const vector<T> &vec) {\n\n    rep(i, vec.size()) os << vec[i] << (i+1 == vec.size() ? \"\" : \" \");\n\n    return os;\n\n}\n\n\n\ntemplate<class T, class U>\n\nostream& operator<< (ostream &os, const pair<T, U> &p) {\n\n    return os << p.first << ' ' << p.second;\n\n}\n\n\n\ntemplate <class T>\n\nvoid _trace(const char *s, T&& x)\n\n{\n\n    clog << '{';\n\n    while(*s != '\\0') clog << *(s++);\n\n    clog << \":\" << setw(3) << x << '}' << endl;\n\n}\n\n\n\ntemplate <class Head, class... Tail>\n\nvoid _trace(const char *s, Head&& head, Tail&&... tail)\n\n{\n\n    clog << '{';\n\n    while(*s != ',') clog << *(s++);\n\n    clog << \":\" << setw(3) << head << \"}, \";\n\n    for (++s; !isgraph(*s); ++s);\n\n    _trace(s, std::forward<Tail>(tail)...);\n\n}\n\n// }}} End Header\n\n// ModInt {{{\n\ntemplate<i64 MOD>\n\nclass ModInt {\n\nprivate:\n\n    i64 n;\n\npublic:\n\n    inline ModInt(i64 n = 0) : n((n >= MOD) ? (n % MOD) : (n < 0) ? ((n + MOD) % MOD) : n) {}\n\n    inline ModInt  operator~() const    { return pow(n, MOD-2); }\n\n    inline ModInt& operator+=(ModInt o) { n = (n + o.n) % MOD; return *this; }\n\n    inline ModInt& operator-=(ModInt o) { n = (MOD + n - o.n) % MOD; return *this; }\n\n    inline ModInt& operator*=(ModInt o) { n = (n * o.n) % MOD; return *this; }\n\n    inline ModInt& operator/=(ModInt o) { n = (n * (~o).n) % MOD; return *this; }\n\n    inline bool operator==(ModInt o) const { return n == o.n; }\n\n    inline bool operator!=(ModInt o) const { return !(*this == o); }\n\n    template<class Int> explicit inline operator Int() const { return static_cast<Int>(n); }\n\n    friend ostream& operator<<(ostream &os, ModInt o) { os << o.n; return os; }\n\n    friend istream& operator>>(istream &is, ModInt &o) { is >> o.n; return is; }\n\n    static constexpr inline ModInt pow(i64 n, i64 p) {\n\n        i64 ret = 1;\n\n        for(; p > 0; p >>= 1) {\n\n            if (p & 1) ret = (ret * n) % MOD;\n\n            n = (n * n) % MOD;\n\n        }\n\n        return ret;\n\n    }\n\n};\n\ntemplate<i64 MOD> auto operator+(ModInt<MOD> a, ModInt<MOD> b) { return ModInt<MOD>(a) += b; }\n\ntemplate<i64 MOD> auto operator-(ModInt<MOD> a, ModInt<MOD> b) { return ModInt<MOD>(a) -= b; }\n\ntemplate<i64 MOD> auto operator*(ModInt<MOD> a, ModInt<MOD> b) { return ModInt<MOD>(a) *= b; }\n\ntemplate<i64 MOD> auto operator/(ModInt<MOD> a, ModInt<MOD> b) { return ModInt<MOD>(a) /= b; }\n\n// }}}\n\n\n\nusing modint = ModInt<int(1e9) + 7>;\n\n\n\nstring s;\n\nint N;\n\ni64 dp[100010][4];\n\n\n\nmodint slv(int idx, int cnt)\n\n{\n\n    if (idx >= N) {\n\n        return (cnt == 3) ? 1 : 0;\n\n    }\n\n    if (~dp[idx][cnt]) return dp[idx][cnt];\n\n\n\n    modint ans = 0;\n\n\n\n    if (cnt == 3) {\n\n        if (s[idx] == '?') {\n\n            ans = slv(idx + 1, cnt) * modint(3);\n\n        } else {\n\n            ans = slv(idx + 1, cnt);\n\n        }\n\n    } else {\n\n        if (s[idx] == '?') {\n\n            ans = slv(idx + 1, cnt) * modint(3) + slv(idx + 1, cnt + 1);\n\n        } else if (s[idx] == ('A' + cnt)) {\n\n            ans = slv(idx + 1, cnt) + slv(idx + 1, cnt + 1);\n\n        } else {\n\n            ans = slv(idx + 1, cnt);\n\n        }\n\n    }\n\n\n\n    return dp[idx][cnt] = (i64)ans;\n\n}\n\n\n\nsigned main()\n\n{\n\n    // ios::sync_with_stdio(false); cin.tie(nullptr);\n\n\n\n    cin >> s;\n\n    N = SIZE(s);\n\n\n\n\n\n    memset(dp, -1, sizeof(dp));\n\n    cout << slv(0, 0) << endl;\n\n\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001931"}
{"label": "pie_cpp_validation_001932", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 10, "hidden_test_count": 1, "problem_id": "p03291", "reference_metric": "runtime_cpu_ns", "reference_value": 10, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001932.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001932", "task_path": "tasks/validation/pie_cpp_validation_001932.json", "visible_test_count": 1}, "problem_id": "p03291", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nA??C\n\nExpected output:\n8\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <fstream>\n\n#include <cmath>  \n\n#include <cstdlib>\n\n#include <ctime>\n\n#include <algorithm>\n\n#include <numeric>\n\n#include <functional>\n\n#include <string> \n\n#include <vector>\n\n#include <bitset>\n\n#include <map>\n\n#include <set>\n\n#include <stack>\n\n#include <queue>\n\n#include <deque>\n\n\n\nusing namespace std;\n\nusing ll = long long;\n\nusing ull = unsigned long long;\n\nusing ld = long double;\n\n\n\n#define REP(i,n) for(int i = 0; i < int(n); i++)\n\n#define REREP(i,n) for(int i = int(n - 1); i >= 0; i--)\n\n#define FOR(i, m, n) for(int i = int(m);i < int(n);i++)\n\n#define REFOR(i, m, n) for(int i = int(n - 1);i >= int(m);i--)\n\n#define ALL(obj) (obj).begin(),(obj).end()\n\n#define fi first \n\n#define se second\n\n\n\n#define VI vector<int>\n\n#define VVI vector<vector<int>>\n\n#define VVVI vector<vector<vector<int>>>\n\n#define VD vector<double>\n\n#define VVD vector<vector<double>>\n\n#define VVVD vector<vector<vector<double>>>\n\n#define VL vector<ll>\n\n#define VVL vector<vector<ll>>\n\n#define VVVL vector<vector<vector<ll>>>\n\n#define VB vector<bool>\n\n#define VVB vector<vector<bool>>\n\n#define VVVB vector<vector<vector<bool>>>\n\n#define VS vector<string>\n\n#define VVS vector<vector<string>>\n\n#define VVVS vector<vector<vector<string>>>\n\n\n\n#define PII pair<int,int>\n\n#define PDD pair<double,double>\n\n#define PLL pair<ll,ll>\n\n#define VPII vector<pair<int,int>>\n\n#define VVPII vector<vector<pair<int,int>>>\n\n#define VVVPII vector<vector<vector<pair<int,int>>>>\n\n#define VPLL vector<pair<ll,ll>>\n\n#define VVPLL vector<vector<pair<ll,ll>>>\n\n#define VVVPLL vector<vector<vector<pair<ll,ll>>>>\n\n\n\nconst ll HMOD = (ll)1e9 + 7;\n\nconst ll LMOD = 998244353;\n\nconst ll HINF = (ll)1e18;\n\nconst ll LINF = (ll)1e9;\n\nconst long double PI = 3.1415926535897932384626433;\n\nconst long double EPS = 1e-10;\n\n\n\n\n\nvoid YN(bool flag) {\n\n\tcout << ((flag) ? \"YES\" : \"NO\") << endl;\n\n}\n\n\n\nvoid Yn(bool flag) {\n\n\tcout << ((flag) ? \"Yes\" : \"No\") << endl;\n\n}\n\n\n\nvoid yn(bool flag) {\n\n\tcout << ((flag) ? \"yes\" : \"no\") << endl;\n\n}\n\n\n\nll rsm(ll x, ll n, ll quotient) {\n\n\tll y = 1;\n\n\twhile (n > 0) {\n\n\t\tif (n & 1) {\n\n\t\t\ty *= x;\n\n\t\t\ty %= quotient;\n\n\t\t}\n\n\t\tx *= x;\n\n\t\tx %= quotient;\n\n\t\tn >>= 1;\n\n\t}\n\n\treturn y;\n\n}\n\n\n\nint main() {\n\n\tstring S; cin >> S;\n\n\tint N = S.size();\n\n\tVL A(N,0), C(N,0), L(N,0), R(N,0);\n\n\tFOR(i, 0, N - 1) if (S[i] == 'A') A[i + 1]++;\n\n\tFOR(i, 0, N - 1) if (S[i] == '?') L[i + 1]++;\n\n\tfor (int i = N - 1; i >= 1; --i) if (S[i] == 'C') C[i - 1]++;\n\n\tfor (int i = N - 1; i >= 1; --i) if (S[i] == '?') R[i - 1]++;\n\n\n\n\t\n\n\tFOR(i, 1, N) A[i] += A[i - 1];\n\n\tfor (int i = N - 2; i >= 0; --i) C[i] += C[i + 1];\n\n\tFOR(i, 1, N) L[i] += L[i - 1];\n\n\tfor (int i = N - 2; i >= 0; --i) R[i] += R[i + 1];\n\n\n\n\n\n\tll ans = 0;\n\n\tFOR(i, 1, N - 1) {\n\n\t\tif (S[i] != 'B' && S[i] != '?') continue;\n\n\t\tll cnt = 0;\n\n\n\n\t\tcnt += ((((A[i] % HMOD) * (C[i] % HMOD)) % HMOD) * ((rsm(3, L[i], HMOD) * rsm(3, R[i], HMOD)) % HMOD))%HMOD;\n\n\t\tcnt %= HMOD;\n\n\t\tcnt += ((((A[i] % HMOD) * (R[i] % HMOD)) % HMOD) * ((rsm(3, L[i], HMOD) * rsm(3, max(R[i]-1,0LL), HMOD)) % HMOD)) % HMOD;\n\n\t\tcnt %= HMOD;\n\n\t\tcnt += ((((L[i] % HMOD) * (C[i] % HMOD)) % HMOD) * ((rsm(3, max(L[i]-1,0LL), HMOD) * rsm(3, R[i], HMOD)) % HMOD)) % HMOD;\n\n\t\tcnt %= HMOD;\n\n\t\tcnt += ((((L[i] % HMOD) * (R[i] % HMOD)) % HMOD) * ((rsm(3, max(L[i] - 1, 0LL), HMOD) * rsm(3, max(R[i] - 1, 0LL), HMOD)) % HMOD)) % HMOD;\n\n\t\tcnt %= HMOD;\n\n\t\t(ans += cnt) %= HMOD;\n\n\t}\n\n\n\n\tcout << ans << endl;\n\n\n\n\n\n\n\n\t\n\n\t\t\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001932"}
{"label": "pie_cpp_validation_001934", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 10, "hidden_test_count": 1, "problem_id": "p03291", "reference_metric": "runtime_cpu_ns", "reference_value": 10, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001934.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001934", "task_path": "tasks/validation/pie_cpp_validation_001934.json", "visible_test_count": 1}, "problem_id": "p03291", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nA??C\n\nExpected output:\n8\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n#define rep(i, n) for (int i = 0; i < (n); i++)\n\n#define rrep(i, n) for (int i = (n) - 1; i >= 0; i--)\n\n#define reps(i, n) for (int i = 1; i <= (n); i++)\n\n#define repi(i, a, b) for (int i = (a); i < (b); i++)\n\n#define all(a) (a).begin(), (a).end()\n\n#define bit(b) (1ull << (b))\n\n\n\nusing namespace std;\n\nusing i32 = int;\n\nusing u32 = unsigned int;\n\nusing i64 = long long;\n\nusing u64 = unsigned long long;\n\nusing f64 = double;\n\nusing f80 = long double;\n\nusing pii = pair<i32, i32>;\n\nusing vi32 = vector<i32>;\n\nusing vu32 = vector<u32>;\n\nusing vi64 = vector<i64>;\n\nusing vu64 = vector<u64>;\n\nusing vf64 = vector<f64>;\n\nusing vf80 = vector<f80>;\n\nusing vstr = vector<string>;\n\nusing vpii = vector<pii>;\n\nusing vvi32 = vector<vi32>;\n\nusing vvu32 = vector<vu32>;\n\nusing vvi64 = vector<vi64>;\n\nusing vvu64 = vector<vu64>;\n\nusing vvf64 = vector<vf64>;\n\nusing vvf80 = vector<vf80>;\n\n\n\ntemplate<typename T, typename S> bool amax(T &x, S y) { if (x < y) { x = y; return 1; } return 0; }\n\ntemplate<typename T, typename S> bool amin(T &x, S y) { if (y < x) { x = y; return 1; } return 0; }\n\n\n\ntemplate<int mod> class modint {\n\npublic:\n\n  int x;\n\n  modint(): x(0) {}\n\n  modint(int a) { x = a % mod; if (x < 0) x += mod; }\n\n  modint &operator+=(modint that) { x = (x + that.x) % mod; return *this; }\n\n  modint &operator-=(modint that) { x = (x + mod - that.x) % mod; return *this; }\n\n  modint &operator*=(modint that) { x = (long long) x * that.x % mod; return *this; }\n\n  modint &operator/=(modint that) { return *this *= that.inverse(); }\n\n  modint operator-() { return modint(-this->x); }\n\n  friend ostream& operator<<(ostream &out, modint m) { return out << m.x; }\n\n  modint inverse() {\n\n    int a = x, b = mod, u = 1, v = 0;\n\n    while (b) { int t = a / b; a -= t * b; u -= t * v; swap(a, b); swap(u, v); }\n\n    return modint(u);\n\n  }\n\n#define op(o, p) modint operator o(modint that) { return modint(*this) p that; }\n\n  op(+, +=) op(-, -=) op(*, *=) op(/, /=)\n\n#undef op\n\n#define op(o) bool operator o(modint that) const { return x o that.x; }\n\n  op(==) op(!=) op(<) op(<=) op(>) op(>=)\n\n#undef op\n\n};\n\n\n\nusing mint = modint<1000000007>;\n\n\n\nint main() {\n\n  ios::sync_with_stdio(false);\n\n  cin.tie(0);\n\n  cout << fixed << setprecision(16);\n\n  cerr << fixed << setprecision(16);\n\n  string s;\n\n  cin >> s;\n\n  vector<vector<mint>> dp(s.size() + 1, vector<mint>(4));\n\n  dp[s.size()][3] = 1;\n\n  rrep(i, s.size()) rrep(j, 4) {\n\n    if (j == 3) {\n\n      dp[i][j] = dp[i + 1][j] * (s[i] == '?' ? 3 : 1);\n\n    } else {\n\n      dp[i][j] = dp[i + 1][j] * (s[i] == '?' ? 3 : 1) +\n\n        dp[i + 1][j + 1] * ((s[i] == '?' || s[i] == \"ABC\"[j]) ? 1 : 0);\n\n    }\n\n  }\n\n  cout << dp[0][0] << endl;\n\n  return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001934"}
{"label": "pie_cpp_validation_001989", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 140, "hidden_test_count": 1, "problem_id": "p00464", "reference_metric": "runtime_cpu_ns", "reference_value": 140, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_001989.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_001989", "task_path": "tasks/validation/pie_cpp_validation_001989.json", "visible_test_count": 1}, "problem_id": "p00464", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 4 3\n1 0 1 1\n0 1 0 0\n1 0 1 0\n0 0 0\n\nExpected output:\n1 5\n\n\nProgram:\n```cpp\n #include<bits/stdc++.h>\n\nusing namespace std;\n\ntypedef pair< int , int > Pi;\n\n\n\nint main()\n\n{\n\n  int H, W, N, mas[1000][1000], dp[1000][1000];\n\n\n\n  while(cin >> H >> W >> N, H){\n\n    for(int i = 0; i < H; i++){\n\n      for(int j = 0; j < W; j++){\n\n        cin >> mas[i][j];\n\n        dp[i][j] = 0;\n\n      }\n\n    }\n\n    dp[0][0] = N - 1;\n\n    for(int i = 0; i < H; i++){\n\n      for(int j = 0; j < W; j++){\n\n        if(i + 1 < H) dp[i + 1][j] += (dp[i][j] + !mas[i][j]) >> 1;\n\n        if(j + 1 < W) dp[i][j + 1] += (dp[i][j] + mas[i][j]) >> 1;\n\n      }\n\n    }\n\n    int h = 0, w = 0;\n\n    while(h != H && w != W){\n\n      if((dp[h][w] + mas[h][w]) % 2) w++;\n\n      else h++;\n\n    }\n\n\n\n    cout << h + 1 << \" \" << w + 1 << endl;\n\n\n\n  }\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_001989"}
{"label": "pie_cpp_validation_002077", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 40, "hidden_test_count": 1, "problem_id": "p02248", "reference_metric": "runtime_cpu_ns", "reference_value": 40, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002077.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002077", "task_path": "tasks/validation/pie_cpp_validation_002077.json", "visible_test_count": 1}, "problem_id": "p02248", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\naabaaa\naa\n\nExpected output:\n0\n3\n4\n\n\nProgram:\n```cpp\n//res\u306b\u6587\u5b57\u5217S\u306e\u4e2d\u306b\u3042\u308b\u691c\u7d22\u6587\u5b57\u5217s\u306e\u3059\u3079\u3066\u306e\u4e00\u81f4\u7b87\u6240\u306e\u958b\u59cb\u4f4d\u7f6e\u304c\u5165\u308b(0_indexed)\n\n#include <bits/stdc++.h>\n\n#define ll long long\n\n#define INF 1000000005\n\n#define MOD 1000000007\n\n#define EPS 1e-10\n\n#define rep(i,n) for(int i=0;i<(int)(n);++i)\n\n#define rrep(i,n) for(int i=(int)(n)-1;i>=0;--i)\n\n#define srep(i,s,t) for(int i=(int)(s);i<(int)(t);++i)\n\n#define each(a,b) for(auto& (a): (b))\n\n#define all(v) (v).begin(),(v).end()\n\n#define len(v) (int)(v).size()\n\n#define zip(v) sort(all(v)),v.erase(unique(all(v)),v.end())\n\n#define cmx(x,y) x=max(x,y)\n\n#define cmn(x,y) x=min(x,y)\n\n#define fi first\n\n#define se second\n\n#define pb push_back\n\n#define show(x) cout<<#x<<\" = \"<<(x)<<endl\n\n#define spair(p) cout<<#p<<\": \"<<p.fi<<\" \"<<p.se<<endl\n\n#define sar(a,n) cout<<#a<<\":\";rep(kbrni,n)cout<<\" \"<<a[kbrni];cout<<endl\n\n#define svec(v) cout<<#v<<\":\";rep(kbrni,v.size())cout<<\" \"<<v[kbrni];cout<<endl\n\n#define svecp(v) cout<<#v<<\":\";each(kbrni,v)cout<<\" {\"<<kbrni.first<<\":\"<<kbrni.second<<\"}\";cout<<endl\n\n#define sset(s) cout<<#s<<\":\";each(kbrni,s)cout<<\" \"<<kbrni;cout<<endl\n\n#define smap(m) cout<<#m<<\":\";each(kbrni,m)cout<<\" {\"<<kbrni.first<<\":\"<<kbrni.second<<\"}\";cout<<endl\n\n\n\nusing namespace std;\n\n\n\ntypedef pair<int,int> P;\n\ntypedef pair<ll,ll> pll;\n\ntypedef vector<int> vi;\n\ntypedef vector<vi> vvi;\n\ntypedef vector<ll> vl;\n\ntypedef vector<vl> vvl;\n\ntypedef vector<double> vd;\n\ntypedef vector<P> vp;\n\ntypedef vector<string> vs;\n\n\n\nconst int MAX_N = 100005;\n\n\n\nclass KMP\n\n{\n\npublic:\n\n    vector<int> table, res;\n\n    string pattern;\n\n    int plen;\n\n    KMP(const string s){\n\n        pattern = s;\n\n        plen = (int)pattern.size();\n\n        table.resize(plen+1);\n\n        table[0] = -1;\n\n        int j = -1;\n\n        rep(i,plen){\n\n            while(j >= 0 && pattern[i] != pattern[j]){\n\n                j = table[j];\n\n            }\n\n            table[i+1] = ++j;\n\n        }\n\n    }\n\n    void search(const string& text){\n\n        int head = 0, j = 0, tlen = (int)text.size();\n\n        while(head + j < tlen){\n\n            if(pattern[j] == text[head + j]) {\n\n                if(++j == plen){\n\n                    res.push_back(head);\n\n                    head = head + j - table[j];\n\n                    j = table[j];\n\n                }\n\n            }else{\n\n                head = head + j - table[j];\n\n                if(j){\n\n                    j = table[j];\n\n                }\n\n            }\n\n        }\n\n    }\n\n};\n\n\n\nint main()\n\n{\n\n    cin.tie(0);\n\n    ios::sync_with_stdio(false);\n\n    string t,p;\n\n    cin >> t >> p;\n\n    KMP kmp(p);\n\n    kmp.search(t);\n\n    vi& res = kmp.res;\n\n    rep(i,len(res)){\n\n        cout << res[i] << \"\\n\";\n\n    }\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002077"}
{"label": "pie_cpp_validation_002087", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 80, "hidden_test_count": 1, "problem_id": "p02248", "reference_metric": "runtime_cpu_ns", "reference_value": 80, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002087.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002087", "task_path": "tasks/validation/pie_cpp_validation_002087.json", "visible_test_count": 1}, "problem_id": "p02248", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\naabaaa\naa\n\nExpected output:\n0\n3\n4\n\n\nProgram:\n```cpp\n#include<iostream>\n\n#include<cstdio>\n\n#include<string>\n\n\n\nusing namespace std;\n\n\n\nint main(){\n\n\tint tl,pl;\n\n\tstring T,P;\n\n\n\n\tcin>>T;\n\n\tcin>>P;\n\n\ttl=T.size();\n\n\tpl=P.size();\n\n\tif(tl<pl) return 0;\n\n\tfor(int i=0;i<tl-pl+1;i++){\n\n\t\tif(T[i]==P[0]){\n\n\t\t\tif(T.substr(i,pl)==P)\n\n\t\t\tprintf(\"%d\\n\",i);\n\n\t\t}\n\n\t}\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002087"}
{"label": "pie_cpp_validation_002162", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 190, "hidden_test_count": 1, "problem_id": "p00461", "reference_metric": "runtime_cpu_ns", "reference_value": 190, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002162.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002162", "task_path": "tasks/validation/pie_cpp_validation_002162.json", "visible_test_count": 1}, "problem_id": "p00461", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n1\n13\nOOIOIOIOIIOII\n2\n13\nOOIOIOIOIIOII\n0\n\nExpected output:\n4\n2\n\n\nProgram:\n```cpp\n#include<bits/stdc++.h>\n\nusing namespace std;\n\nint main()\n\n{\n\n    long long int n;\n\n    while(cin>>n,n){\n\n        long long int siz,ans=0;\n\n        string str;\n\n        cin>>siz>>str;\n\n        for(int i=0;i<siz-2*n;i++){\n\n            if(str[i]=='I'){\n\n                int co=0;\n\n                for(int j=i+1;j<siz;j+=2,co++){\n\n                    if(str[j]!='O'||str[j+1]!='I')break;\n\n                }\n\n                if(co>=n){\n\n                    ans+=co-n+1;\n\n                    i+=1+2*co-n;\n\n                }\n\n            }\n\n        }\n\n        cout<<ans<<endl;\n\n    }\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002162"}
{"label": "pie_cpp_validation_002197", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 2190, "hidden_test_count": 1, "problem_id": "p00781", "reference_metric": "runtime_cpu_ns", "reference_value": 2190, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002197.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002197", "task_path": "tasks/validation/pie_cpp_validation_002197.json", "visible_test_count": 1}, "problem_id": "p00781", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n10000 01000 00100 11000 01100 11111 01110 11100 10110 11110\n10101 01000 00000 11001 01100 11101 01110 11100 10110 11010\nEND\n\nExpected output:\n40\n6\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <vector>\n\n#include <algorithm>\n\n#include <cstring>\n\n#include <cstdlib>\n\n#include <string>\n\n#include <set>\n\n\n\nusing namespace std;\n\n\n\nint a[10];\n\nstring vs[10];\n\nbool selected[10];\n\nset<int> res;\n\n\n\nvoid comb(int num){\n\n  if(num==5){\n\n    // \u30c4\u3065\u3064\u30bd\u30c4\u3065\u30a1\u30c4\u3065\u30fc\u30c4\u6e58\u300d\u30c4\u3065\u53ef\u3064\u30ad\u30c4\u3065\u30a5\u30c4\u3064\u30a5\n\n    for(int s = 0; s < (1<<5); s++){\n\n      int mask=0;\n\n      for(int i = 0; i < 5; i++){\n\n\tif((s>>i)&1){\n\n\t  for(int j = 0; j < 5; j++){\n\n\t    if(vs[a[i]][j]=='1')\n\n\t      mask|=(1<<(j*5+i));\n\n\t  }\n\n\t}\n\n\telse{\n\n\t  // \u30c4\u9006\u30c4\u53e4\u30b7\u30c4\u3064\u30a9\n\n\t  for(int j = 0; j < 5; j++){\n\n\t    if(vs[a[i]][4-j]=='1')\n\n\t      mask|=(1<<(j*5+i));\n\n\t  }\n\n\t}\n\n      }\n\n      vector<int> left;\n\n      for(int i = 0; i < 10; i++){\n\n\tif(!selected[i])\n\n\t  left.push_back(i);\n\n      }\n\n      bool no[10];\n\n      memset(no,0,sizeof(no));\n\n      bool bad=false;\n\n      // \u30c4\u3065\u500b\u3064\u30a2\u30c4\u3065\u30a3\u30c4\u3065\u500b\u8981\u30c4\u7d20\u30c4\u3065\u30fc\u30c4\u30de\u30c4\u30c3\u30c4\u30c1\u30c4\u3064\u30ad\u30c4\u3065\u30a5\u30c4\u6e09\u6c3e\u677f\u3065\u53ef\u7f6e\u30c4\u3064\u300c\u30c4\u3065\u3064\u300c\u30c4\u3064\u30e5\n\n      for(int i = 0; i < 5; i++){\n\n\tbool ok=false;\n\n\tfor(int j = 0; j < left.size(); j++){\n\n\t  if(no[j])continue;\n\n\t  bool isMatch=true;\n\n\t  // match\u30c4\u3064\u30ad\u30c4\u3065\u30a5\u30c4\u3064\u30a5\u30c4\u9673\u30a4\u30c4\u3065\u731f\u3065\u30a5\n\n\t  // \u30c4\u50b5\u30ab\u30c4\u3064\u30a5\u30c4\u3065\u30a1\n\n\t  for(int k = 0; k < 5; k++){\n\n\t    if(!((vs[left[j]][k]-'0')^((mask>>(i*5+k))&1))){\n\n\t      // no\n\n\t      isMatch=false;\n\n\t      break;\n\n\t    }\n\n\t  }\n\n\t  if(!isMatch){\n\n\t    isMatch=true;\n\n\t    for(int k = 0; k < 5; k++){\n\n\t      if(!((vs[left[j]][4-k]-'0')^((mask>>(i*5+k))&1))){\n\n\t\t// no\n\n\t\tisMatch=false;\n\n\t\tbreak;\n\n\t      }\n\n\t    }\n\n\t    if(isMatch){\n\n\t      no[j]=true;\n\n\t      ok=true;\n\n\t      break;\n\n\t    }\n\n\t  }\n\n\t  else{\n\n\t    no[j]=true;\n\n\t    ok=true;\n\n\t    break;\n\n\t  }\n\n\t}\n\n\t// \u30c4\u3065\u6556\u3065\u3064\u3064\u30a5\u30c4\u3065\u30a1\u30c4\u3065\u6309\u3064\u300c\n\n\tif(!ok){\n\n\t  bad=true;\n\n\t  break;\n\n\t}\n\n      }\n\n      if(!bad){\n\n\tres.insert(mask);\n\n      }\n\n    }\n\n  }\n\n  else{\n\n    for(int i = 0; i < 10; i++){\n\n      if(selected[i])continue;\n\n      a[num]=i;\n\n      selected[i]=true;\n\n      comb(num+1);\n\n      selected[i]=false;\n\n    }\n\n  }\n\n}\n\n\n\nint main(){\n\n\n\n  memset(selected,0,sizeof(selected));\n\n  while(cin>>vs[0]&&vs[0]!=\"END\"){\n\n    for(int i = 1; i < 10; i++)\n\n      cin>>vs[i];\n\n    comb(0);\n\n    cout<<res.size()/8<<endl;\n\n    res.clear();\n\n  }\n\n  \n\n  \n\n  return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002197"}
{"label": "pie_cpp_validation_002279", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 4, "hidden_test_count": 1, "problem_id": "p03788", "reference_metric": "runtime_cpu_ns", "reference_value": 4, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002279.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002279", "task_path": "tasks/validation/pie_cpp_validation_002279.json", "visible_test_count": 1}, "problem_id": "p03788", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5 1\nABAAA\n\nExpected output:\nBBAAA\n\n\nProgram:\n```cpp\n#include <vector>\n\n#include <list>\n\n#include <map>\n\n#include <set>\n\n#include <deque>\n\n#include <stack>\n\n#include <bitset>\n\n#include <algorithm>\n\n#include <functional>\n\n#include <numeric>\n\n#include <utility>\n\n#include <sstream>\n\n#include <iostream>\n\n#include <iomanip>\n\n#include <cstdio>\n\n#include <cmath>\n\n#include <cstdlib>\n\n#include <ctime>\n\n#include <memory.h>\n\n\n\n#define pb push_back\n\n\n\nusing namespace std;\n\n\n\nint n, k, m = 0;\n\nstring s;\n\n\n\nint main()\n\n{\n\n    cin >> n >> k;\n\n    cin >> s;\n\n\n\n    for(int i = 0; i < s.length(); i++)\n\n    {\n\n        if((i % 2 == 0 && s[i] == 'A') || (i % 2 == 1 && s[i] == 'B'))\n\n            m += 2;\n\n        else\n\n            m++;\n\n    }\n\n\n\n    if(k >= m)\n\n    {\n\n        k = k - m;\n\n        if(s.length() % 2 == 1)\n\n        {\n\n            if(k % 2 == 0)\n\n                cout << \"A\";\n\n            else\n\n                cout << \"B\";\n\n            for(int i = 1; i < s.length(); i++)\n\n                if(i % 2 == 1)\n\n                    cout << \"B\";\n\n                else\n\n                    cout << \"A\";\n\n        }else\n\n        {\n\n            for(int i = 0; i < s.length(); i++)\n\n                if(i % 2 == 0)\n\n                    cout << \"B\";\n\n                else\n\n                    cout << \"A\";\n\n        }\n\n    }else\n\n    {\n\n        bool u = 1;\n\n        deque <int> dq;\n\n        for(int i = 0 ; i < s.size() ; i ++)\n\n            dq.pb(int(s[i] - 'A'));\n\n        while(k --)\n\n        {\n\n            if(u && dq.front() == 0 || !u && dq.front() == 1)\n\n                dq.front() ^= 1;\n\n            else\n\n            {\n\n                dq.pop_front();\n\n                u ^= 1;\n\n                if(u)\n\n                    dq.pb(0);\n\n                else\n\n                    dq.pb(1);\n\n            }\n\n        }\n\n        while(!dq.empty())\n\n        {\n\n            if(u)\n\n                cout << ((dq.front()) ? 'B' : 'A');\n\n            else\n\n                cout << ((dq.front() ^ 1) ? 'B' : 'A');\n\n            dq.pop_front();\n\n        }\n\n    }\n\n\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002279"}
{"label": "pie_cpp_validation_002545", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 10, "hidden_test_count": 1, "problem_id": "p00877", "reference_metric": "runtime_cpu_ns", "reference_value": 10, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002545.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002545", "task_path": "tasks/validation/pie_cpp_validation_002545.json", "visible_test_count": 1}, "problem_id": "p00877", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n3 3\n100 700\n200 200\n600 600\n500 100\n500 300\n800 500\n3 3\n100 300\n400 600\n400 100\n600 400\n500 900\n300 300\n3 4\n300 300\n500 300\n400 600\n100 100\n200 900\n500 900\n800 100\n1 2\n300 300\n100 100\n500 500\n1 1\n100 100\n200 100\n2 2\n0 0\n500 700\n1000 1400\n1500 2100\n2 2\n0 0\n1000 1000\n1000 0\n0 1000\n3 3\n0 100\n4999 102\n10000 103\n5001 102\n10000 102\n0 101\n3 3\n100 100\n200 100\n100 200\n0 0\n400 0\n0 400\n3 3\n2813 1640\n2583 2892\n2967 1916\n541 3562\n9298 3686\n7443 7921\n0 0\n\nExpected output:\nYES\nNO\nNO\nNO\nYES\nYES\nNO\nNO\nNO\nYES\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <cstdio>\n\n#include <cstring>\n\n#include <algorithm>\n\n#include <cmath>\n\nusing namespace std;\n\n\n\nstruct Point\n\n{\n\n    double x,y;\n\n    Point (double x=0, double y=0) :x(x),y(y) {}\n\n    void show() { cout<<\"(\"<<x<<\",\"<<y<<\")\"<<endl; }\n\n};\n\ntypedef Point Vector;\n\n\n\nbool operator < (const Point& A, const Point& B )\n\n{\n\n    return A.x < B.x || (A.x == B.x && A.y < B.y);\n\n}\n\nVector operator - ( Point A, Point B) { return Vector(A.x-B.x, A.y-B.y); }\n\ndouble Cross(Vector A, Vector B) { return A.x*B.y - B.x*A.y; }\n\n\n\nconst double eps = 1e-10;\n\nint dcmp(double x)\n\n{\n\n    if(fabs(x) < eps) return 0;\n\n    return x>0? 1: -1;\n\n}\n\n\n\nint ConvexHull ( Point* p, int n, Point* ch)\n\n{\n\n    sort(p, p+n);\n\n    int m = 0;\n\n    for(int i = 0; i<n; i++)\n\n    {\n\n        while(m > 1 && Cross( ch[m-1] - ch[m-2], p[i] - ch[m-2]) <= 0) m--;\n\n        ch[m++] = p[i];\n\n    }\n\n    int k = m;\n\n    for(int i = n-2; i>=0; i--)\n\n    {\n\n        while(m > k && Cross( ch[m-1] - ch[m-2], p[i] - ch[m-2]) <= 0) m--;\n\n        ch[m++] = p[i];\n\n    }\n\n    ///&#36824;\u8981\u6539\u4e00\u4e0b\u751f\u6210\u591a&#36793;\u5f62\u3002\n\n    ch[m++] = ch[0];\n\n    if(n > 1) m--;\n\n    return m;\n\n}\n\n\n\nPoint black[120],white[120],cw[120],cb[120];\n\nint nb,nw,n,m;\n\n\n\nvoid reset()\n\n{\n\n    memset(black,0,sizeof(black));\n\n    memset(white,0,sizeof(white));\n\n    memset(cw,0,sizeof(cw));\n\n    memset(cb,0,sizeof(cb));\n\n}\n\n\n\nbool SideCross(Point a1, Point a2, Point b1, Point b2)\n\n{\n\n    double c1 = Cross(a2 - a1, b1 - a1), c2 = Cross(a2 - a1, b2 - a1),\n\n    c3 = Cross(b2 - b1, a1 - b1), c4 = Cross(b2 - b1, a2 - b1);\n\n    return dcmp(c1)*dcmp(c2)<0 && dcmp(c3)*dcmp(c4)<0;\n\n}\n\n\n\nbool pInConvex(Point a, Point* ch, int n)\n\n{\n\n    int i;\n\n    if(n==3)\n\n    {\n\n        if(a.x < min(ch[0].x, ch[1].x) || a.x > max(ch[0].x, ch[1].x)) return 0;\n\n        if(a.y < min(ch[0].y, ch[1].y) || a.y > max(ch[0].y, ch[1].y)) return 0;\n\n    }\n\n    for(i=1;i<n;i++)\n\n    {\n\n        if(Cross( ch[i]-ch[i-1], a-ch[i-1] ) < 0 ) return 0;\n\n    }\n\n    return 1;\n\n}\n\n\n\nint solve()\n\n{\n\n    int i,j;\n\n    if(n==1&&m==1) return 1;\n\n    else if(n==1)\n\n    {\n\n        ///\u627e\u767d\u5b50\u51f8\u5305\u591a&#36793;\u5f62\u3002\u5224\u65ad&#36825;\u4e2a?\u5b50\u662f\u5426\u5728\u767d\u5305\u5185\n\n        nw=ConvexHull(white, m, cw);\n\n        if(pInConvex(black[0], cw, nw)) return 0;\n\n    }\n\n    else if(m==1)\n\n    {\n\n        ///\u627e?\u5b50\u51f8\u5305\u591a&#36793;\u5f62\u3002\u5224\u65ad&#36825;\u4e2a\u767d\u5b50\u662f\u5426\u5728?\u5305\u5185\n\n        nb=ConvexHull(black, n, cb);\n\n        if(pInConvex(white[0], cb, nb)) return 0;\n\n    }\n\n    else\n\n    {\n\n        ///\u627e?\u767d\u51f8\u5305\u591a&#36793;\u5f62\u3002\u5224\u65ad\u662f\u5426\u6709&#32447;\u6bb5\u76f8\u4ea4\u6216\u70b9\u5728&#21478;\u4e00\u4e2a\u51f8\u5305\u5185\u3002\n\n        nb=ConvexHull(black, n, cb);\n\n        nw=ConvexHull(white, m, cw);\n\n        for(i=1;i<nb;i++)\n\n        {\n\n            for(j=1;j<nw;j++)\n\n                if(SideCross( cb[i], cb[i-1], cw[j] ,cw[j-1] )) return 0;\n\n        }\n\n        for(i=0;i<n;i++)\n\n            if(pInConvex(black[i], cw, nw)) return 0;\n\n        for(i=0;i<m;i++)\n\n            if(pInConvex(white[i], cb, nb)) return 0;\n\n    }\n\n    return 1;\n\n}\n\n\n\nint main()\n\n{\n\n    int i,tx,ty;\n\n    while(cin>>n>>m,n||m)\n\n    {\n\n        reset();\n\n        for(i=0;i<n;i++)\n\n        {\n\n            cin>>tx>>ty;\n\n            black[i]=Point(tx,ty);\n\n        }\n\n        for(i=0;i<m;i++)\n\n        {\n\n            cin>>tx>>ty;\n\n            white[i]=Point(tx,ty);\n\n        }\n\n        int ans=solve();\n\n        if(ans)\n\n            cout<<\"YES\"<<endl;\n\n        else\n\n            cout<<\"NO\"<<endl;\n\n    }\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002545"}
{"label": "pie_cpp_validation_002554", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 4, "hidden_test_count": 1, "problem_id": "p02915", "reference_metric": "runtime_cpu_ns", "reference_value": 4, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002554.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002554", "task_path": "tasks/validation/pie_cpp_validation_002554.json", "visible_test_count": 1}, "problem_id": "p02915", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n\nExpected output:\n8\n\n\nProgram:\n```cpp\n#include<bits/stdc++.h>\n\n#include<cmath>\n\nusing namespace std;\n\nint main()\n\n{\n\n    double n,result;\n\n    cin>>n;\n\n\n\n    result=pow(n,3);\n\n\n\n    printf(\"%.0lf\",result);\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002554"}
{"label": "pie_cpp_validation_002587", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 5, "hidden_test_count": 1, "problem_id": "p02915", "reference_metric": "runtime_cpu_ns", "reference_value": 5, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002587.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002587", "task_path": "tasks/validation/pie_cpp_validation_002587.json", "visible_test_count": 1}, "problem_id": "p02915", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n\nExpected output:\n8\n\n\nProgram:\n```cpp\n#include <stdio.h>\n\nint main(){\n\n    int limit;\n\n    scanf(\"%d\", &limit);\n\n    int result = limit * limit * limit;\n\n    printf(\"%d\\n\", result);\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002587"}
{"label": "pie_cpp_validation_002591", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 5, "hidden_test_count": 1, "problem_id": "p02915", "reference_metric": "runtime_cpu_ns", "reference_value": 5, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002591.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002591", "task_path": "tasks/validation/pie_cpp_validation_002591.json", "visible_test_count": 1}, "problem_id": "p02915", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n\nExpected output:\n8\n\n\nProgram:\n```cpp\n#include <stdio.h>\n\n\n\nint main()\n\n{\n\n    int var;\n\n    scanf(\"%d\",&var);\n\n    printf(\"%d\",var*var*var);\n\n   \n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002591"}
{"label": "pie_cpp_validation_002620", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 1, "hidden_test_count": 1, "problem_id": "p02915", "reference_metric": "runtime_cpu_ns", "reference_value": 1, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002620.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002620", "task_path": "tasks/validation/pie_cpp_validation_002620.json", "visible_test_count": 1}, "problem_id": "p02915", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n\nExpected output:\n8\n\n\nProgram:\n```cpp\n#include<bits/stdc++.h>\n\nusing namespace std;\n\nint main(){\n\n\tint n;cin>>n;cout<<pow(n,3)<<endl;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002620"}
{"label": "pie_cpp_validation_002625", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 6, "hidden_test_count": 1, "problem_id": "p02915", "reference_metric": "runtime_cpu_ns", "reference_value": 6, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002625.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002625", "task_path": "tasks/validation/pie_cpp_validation_002625.json", "visible_test_count": 1}, "problem_id": "p02915", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n2\n\nExpected output:\n8\n\n\nProgram:\n```cpp\n#include<stdio.h>\n\n\n\nint main()\n\n{\n\n\n\n    int n;\n\n   \n\n    1<=n<=9;\n\n\n\n    scanf(\"%d\",&n);\n\n\n\n    printf(\"%d\\n\", n*n*n);\n\n\n\n\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002625"}
{"label": "pie_cpp_validation_002682", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 6, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 6, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002682.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002682", "task_path": "tasks/validation/pie_cpp_validation_002682.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\n\n\n\n\nint main(void){\n\n    string S;\n\n    cin >> S;\n\n    int n=S.size(); // \u4ee5\u964dn\u306fS\u306e\u30b5\u30a4\u30ba\u3092\u8868\u3057\u7d9a\u3051\u308b\n\n    reverse(S.begin(), S.end());\n\n\n\n    string a=\"maerd\", b=\"remaerd\", c=\"esare\", d=\"resare\";\n\n\n\n    while(true){\n\n        if(S==\"\"){\n\n            cout << \"YES\" << endl;\n\n            return 0;\n\n        }\n\n        else if(S.substr(0,5)==a){\n\n            S=S.substr(5,n-5);\n\n            n-=5;\n\n        }\n\n        else if(S.substr(0,7)==b){\n\n            S=S.substr(7,n-7);\n\n            n-=7;\n\n        }\n\n        else if(S.substr(0,5)==c){\n\n            S=S.substr(5,n-5);\n\n            n-=5;\n\n        }\n\n        else if(S.substr(0,6)==d){\n\n            S=S.substr(6,n-6);\n\n            n-=6;\n\n        }\n\n        else{\n\n            cout << \"NO\" << endl;\n\n            return 0;\n\n        }\n\n    }\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002682"}
{"label": "pie_cpp_validation_002695", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 9, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 9, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002695.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002695", "task_path": "tasks/validation/pie_cpp_validation_002695.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n// :) \n\n#include <bits/stdc++.h>\n\nusing namespace std;\n\ntypedef long long ll;\n\nint main () {\n\n\tios::sync_with_stdio(false); cin.tie(0); cout.tie(0);\n\n\tstring s;\n\n\tcin >> s;\n\n\tif (s.length() < 5) {\n\n\t\tcout << \"NO\\n\";\n\n\t\treturn 0;\n\n\t}\n\n\tbool ok = true;\n\n\tint i = s.length()-1;\n\n\twhile (i >= 0) {\n\n\t\tstring cur;\n\n\t\tfor (int t = 0; t < 5 && i - t >= 0; t++)\n\n\t\t\tcur = s[i-t] + cur;\n\n\t\tif (cur == \"erase\" || cur == \"dream\") {\n\n\t\t\ti -= 5;\n\n\t\t\tcontinue;\n\n\t\t}\n\n\t\tcur = \"\";\n\n\t\tfor (int t = 0; t < 6 && i - t >= 0; t++)\n\n\t\t\tcur = s[i-t] + cur;\n\n\t\tif (cur == \"eraser\") {\n\n\t\t\ti -= 6;\n\n\t\t\tcontinue;\n\n\t\t}\n\n\t\tcur = \"\";\n\n\t\tfor (int t = 0; t < 7 && i - t >= 0; t++)\n\n\t\t\tcur = s[i-t] + cur;\n\n\t\tif (cur == \"dreamer\") {\n\n\t\t\ti -= 7;\n\n\t\t\tcontinue;\n\n\t\t}\n\n\t\tok = false;\n\n\t\tbreak;\n\n\t}\n\n\tif (i != -1 || !ok) \n\n\t\tcout << \"NO\\n\";\n\n\telse\n\n\t\tcout << \"YES\\n\";\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002695"}
{"label": "pie_cpp_validation_002747", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 5, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 5, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002747.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002747", "task_path": "tasks/validation/pie_cpp_validation_002747.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\ntypedef long long ll;\n\n#define rep(i, n) for (ll i = 0; i < (int)(n); i++)\n\n#define all(x) (x).begin(),(x).end()\n\n#define m0(x) memset(x,0,sizeof(x))\n\nconst int INF = 2000000000;\n\n\n\nstack<char> s;\n\nstring S;\n\nbool fl = true;\n\n\n\nint main(){\n\n  cin >> S;\n\n  rep(i, S.size()) s.push(S.at(i));\n\n  while(!s.empty()){\n\n    bool flag = false;\n\n    string tmp = \"\";\n\n    rep(i, 5){\n\n      if(s.empty()) break;\n\n      tmp += s.top();\n\n      s.pop();\n\n    }\n\n    if(tmp == \"maerd\"||tmp == \"esare\"){\n\n      flag = true;\n\n    }\n\n    else if(!s.empty() && (tmp == \"remae\"|| tmp == \"resar\")){\n\n      tmp+=s.top();\n\n      s.pop();\n\n      if(tmp == \"resare\") flag = true;\n\n      else {\n\n        if(s.empty()) break;\n\n        tmp+=s.top();\n\n        s.pop();\n\n        if(tmp == \"remaerd\") flag = true;\n\n      }\n\n    }\n\n    if(!flag){\n\n      fl = false;\n\n      break;\n\n    }\n\n  }\n\n  if(fl) cout << \"YES\" <<endl;\n\n  else cout << \"NO\" <<endl;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002747"}
{"label": "pie_cpp_validation_002754", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 11, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 11, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002754.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002754", "task_path": "tasks/validation/pie_cpp_validation_002754.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\n\n\nint main() {\n\n  string str;\n\n  string strFive,strSix;\n\n  bool chk = true;\n\n  cin >> str;\n\n  \n\n  // \u5f8c\u308d\u304b\u3089\u89e3\u8aad\n\n  reverse(str.begin(), str.end());\n\n  \n\n  while(true){\n\n    if(str.size() == 0){\n\n      // 0\u6587\u5b57\u306f\u6b63\u5e38\u5224\u5b9a\n\n      break;\n\n    }else if(str.size() < 5){\n\n      // 4\u6587\u5b57\u4ee5\u4e0b\u306f\u30a8\u30e9\u30fc\n\n      chk = false;\n\n      break; \n\n    }\n\n    \n\n    // 5\u6587\u5b57\u30c1\u30a7\u30c3\u30af\n\n    strFive = str.substr(0,5);\n\n    if(strFive == \"maerd\" || strFive == \"esare\"){\n\n      // OK\n\n      str = str.erase(0,5);\n\n      continue;\n\n    }\n\n    \n\n    if(str.size() >= 6){\n\n      // 6\u6587\u5b57\u30c1\u30a7\u30c3\u30af\n\n      strSix = str.substr(0,6);\n\n      if(strSix == \"resare\"){\n\n        // OK\n\n        str = str.erase(0,6);\n\n        continue;\n\n      } \n\n    }\n\n    \n\n    if(str.size() >= 7){\n\n      // 7\u6587\u5b57\u30c1\u30a7\u30c3\u30af\n\n      strSix = str.substr(0,7);\n\n      if(strSix == \"remaerd\"){\n\n        // OK\n\n        str = str.erase(0,7);\n\n        continue;\n\n      }else{\n\n        chk = false;\n\n        break;  \n\n      }\n\n    }\n\n  }\n\n  \n\n  if(chk == true){\n\n    cout << \"YES\";\n\n  }else{\n\n    cout << \"NO\";\n\n  }\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002754"}
{"label": "pie_cpp_validation_002776", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 2, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 2, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002776.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002776", "task_path": "tasks/validation/pie_cpp_validation_002776.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\n#define ll long long\n\nchar a[101000];\n\nint main()\n\n{\n\n    ll i,j,k,m,n,x,b;\n\n    cin>>a;\n\n    n=strlen(a);\n\n    for(i=0; i<n; i++)\n\n    {\n\n        if(a[i]=='e')\n\n        {\n\n            if(a[i+1]=='r'&&a[i+2]=='a'&&a[i+3]=='s'&&a[i+4]=='e')\n\n            {\n\n                if(a[i+5]=='r')\n\n                    i+=5;\n\n                else\n\n                    i+=4;\n\n            }\n\n        }\n\n        else if(a[i]=='d')\n\n        {\n\n            if(a[i+1]=='r'&&a[i+2]=='e'&&a[i+3]=='a'&&a[i+4]=='m')\n\n            {\n\n                if(a[i+5]=='e'&&a[i+6]=='r'&&a[i+7]=='a'&&a[i+8]=='s'&&a[i+9]=='e')\n\n                    i+=4;\n\n                else if(a[i+5]=='e'&&a[i+6]=='r')\n\n                    i+=6;\n\n                else\n\n                    i+=4;\n\n            }\n\n        }\n\n        else\n\n        {\n\n            cout<<\"NO\"<<endl;\n\n            return 0;\n\n        }\n\n    }\n\n    cout<<\"YES\"<<endl;\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002776"}
{"label": "pie_cpp_validation_002791", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 17, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 17, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002791.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002791", "task_path": "tasks/validation/pie_cpp_validation_002791.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <string>\n\n#include <vector>\n\n#include <map>\n\n#include <algorithm>\n\n#include <sstream>\n\n#include <iomanip>\n\n#define rep(i,n) for (int i = 0; i < (n); ++i)\n\nusing namespace std;\n\nusing ll = long long;\n\nusing P = pair<int, int>;\n\nconst int iINF = 100100100;\n\nconst ll llINF = 1LL << 60;\n\nstring s = \"\";\n\nint Size;\n\nll chmin(ll a, ll b)\n\n{\n\n\treturn a > b ? b : a;\n\n}\n\nbool getPos(int pos)\n\n{\n\n\t//cout << \"pos : \" << pos << endl;\n\n\tif (pos == Size)\treturn true;\n\n\tif (pos > Size)\treturn false;\n\n\tint tmpPos;\n\n\tauto dreamItr = s.find(\"dream\", pos);\n\n\tauto dreamerItr = s.find(\"dreamer\", pos);\n\n\tauto eraseItr = s.find(\"erase\", pos);\n\n\tauto eraserItr = s.find(\"eraser\", pos);\n\n\t//cout << dreamItr << endl;\n\n\t//cout << dreamerItr << endl;\n\n\t//cout << eraseItr << endl;\n\n\t//cout << eraserItr << endl;\n\n\tbool ok = false;\n\n\tif (pos == dreamItr) {\n\n\t\tif (getPos(pos + 5)) return true;\n\n\t}\n\n\tif (pos == dreamerItr) {\n\n\t\tif (getPos(pos + 7)) return true;\n\n\t}\n\n\tif (pos == eraseItr) {\n\n\t\tif (getPos(pos + 5)) return true;\n\n\t}\n\n\tif (pos == eraserItr) {\n\n\t\tif (getPos(pos + 6)) return true;\n\n\t}\n\n\tif (!ok)\treturn false;\n\n}\n\nint main()\n\n{\n\n\tcin >> s;\n\n\tauto dreamItr = s.find(\"dream\");\n\n\tauto dreamerItr = s.find(\"dreamer\");\n\n\tauto eraseItr = s.find(\"erase\");\n\n\tauto eraserItr = s.find(\"eraser\");\n\n\tSize = s.size();\n\n\tgetPos(0);\n\n\tif (getPos(0))\tcout << \"YES\" << endl;\n\n\telse cout << \"NO\" << endl;\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002791"}
{"label": "pie_cpp_validation_002794", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 12, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 12, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002794.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002794", "task_path": "tasks/validation/pie_cpp_validation_002794.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n#include <cmath>\n\n\n\nusing namespace std;\n\ntypedef long long ll;\n\n\n\n#define rep(i, n) for (ll i = 0; i < (n); ++i)\n\n//#define rep(i, n) for (int i = 0; i < (n); ++i)\n\n#define sz(x) ll(x.size())\n\n//typedef pair<int, int> P;\n\ntypedef pair<ll, ll> P;\n\n//const double INF = 1e10;\n\n//const ll INF = LONG_LONG_MAX;\n\nconst ll MINF = LONG_LONG_MIN;\n\nconst int INF = INT_MAX;\n\n#define cmin(x, y) x = min(x, y)\n\n#define cmax(x, y) x = max(x, y)\n\n\n\nbool contain(set<char> &s, int a) { return s.find(a) != s.end(); }\n\n\n\n\n\n//ifstream myfile(\"C:\\\\Users\\\\riku\\\\Downloads\\\\0_00.txt\");\n\n//ofstream outfile(\"log.txt\");\n\n//outfile << setw(6) << setfill('0') << prefecture << setw(6) << setfill('0') << rank << endl;\n\n// std::cout << std::bitset<8>(9);\n\n\n\ntypedef priority_queue<ll, vector<ll>, greater<ll>> PQ_ASK;\n\nconst int mod = 1000000007;\n\n\n\nint main() {\n\n\n\n    string s;\n\n    cin >> s;\n\n    vector<bool> dp(s.size() + 1, false);\n\n    vector<string> word = {\"dream\", \"dreamer\", \"erase\", \"eraser\",};\n\n    dp[0] = true;\n\n\n\n    for (int i = 0; i < s.size(); i++) {\n\n        if (!dp[i]) continue;\n\n        for (string w : word) {\n\n            string sub_str = s.substr(i, w.size());\n\n            if (sub_str == w) {\n\n                dp[i + w.size()] = true;\n\n            }\n\n        }\n\n    }\n\n\n\n    cout << (dp.back() ? \"YES\" : \"NO\") << endl;\n\n\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002794"}
{"label": "pie_cpp_validation_002802", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 1, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 1, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002802.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002802", "task_path": "tasks/validation/pie_cpp_validation_002802.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <string>\n\n#include <algorithm>\n\n#define REP(i, n) for (int i = 0; i < n; ++i)\n\n#define ALL(v) (v).begin(), (v).end()\n\n#define REVERSED(v) reverse( ALL(v) )\n\n#define YESNO(x) cout << ( x ? \"YES\" : \"NO\" ) << endl\n\nusing namespace std;\n\n\n\nstring divide[4] = {\"dream\", \"dreamer\", \"erase\", \"eraser\"};\n\n\n\nint main() {\n\n    string S;\n\n    cin >> S;\n\n\n\n    REVERSED(S);\n\n    REP(i,4) REVERSED(divide[i]);\n\n\n\n    bool can = true;\n\n    for (int i = 0; i < S.size(); ) {\n\n        can = false;\n\n        REP(j,4) {\n\n            string d = divide[j];\n\n            if ( S.substr(i, d.size()) == d ) {\n\n                can = true;\n\n                i += d.size();\n\n            }\n\n        }\n\n        if (!can) {\n\n            break;\n\n        }\n\n    }\n\n\n\n    YESNO(can);\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002802"}
{"label": "pie_cpp_validation_002819", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 4, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 4, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002819.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002819", "task_path": "tasks/validation/pie_cpp_validation_002819.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n\n\n#define rep2(x,fr,to) for(int (x)=(fr);(x)<(to);(x)++)\n\n#define rep(x,to) for(int (x)=0;(x)<(to);(x)++)\n\n#define repr(x,fr,to) for(int (x)=(fr);(x)>=(to);(x)--)\n\n#define all(c) (c).begin(),(c).end()\n\n#define sz(v) (int)(v).size()\n\n\n\nusing namespace std;\n\ntypedef long long ll; typedef vector<int> VI; typedef pair<int,int> pii;\n\nconst int MD = (int)1e9 + 7;\n\nvoid dbg(){ cerr << \"\\n\"; }  template <typename T,typename ...T2>\n\nvoid dbg(const T& fst, const T2&...rst){ cerr << fst << \": \"; dbg(rst...); }\n\n\n\nll gcd(ll x, ll y){ return y==0? x: gcd(y, x%y); }\n\n\n\nint main(){\n\n\tcin.tie(0); ios_base::sync_with_stdio(false);\n\n\tstring s;\n\n\tcin >>s;\n\n\t\n\n\tvector<string> mt={\"dream\", \"dreamer\", \"erase\", \"eraser\"};\n\n\tVI sno = {5, 7, 5, 6};\n\n\t\n\n\twhile(sz(s) >0){\n\n\t\tbool ok=false;\n\n\t\trep(j, 4){\n\n\t\t\t//dbg(sz(s), sno[j]);\n\n\t\t\tif(sz(s) >= sno[j] && s.substr(sz(s)-sno[j]) == mt[j]){\n\n\t\t\t\ts = s.substr(0, sz(s)-sno[j]);\n\n\t\t\t\tok = true; break;\n\n\t\t\t}\n\n\t\t}\n\n\t\tif(!ok){ puts(\"NO\"); return 0;}\n\n\t}\n\n\tputs(\"YES\");\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002819"}
{"label": "pie_cpp_validation_002821", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 8, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 8, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002821.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002821", "task_path": "tasks/validation/pie_cpp_validation_002821.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include <vector> \n\n#include <list> \n\n#include <map>\n\n#include <set>\n\n#include <deque>\n\n#include <stack>\n\n#include <bitset>\n\n#include <algorithm>\n\n#include <functional>\n\n#include <numeric>\n\n#include <utility>\n\n#include <sstream>\n\n#include <iostream>\n\n#include <iomanip>\n\n#include <cstdio>\n\n#include <cmath>\n\n#include <cstdlib>\n\n#include <cctype>\n\n#include <string>\n\n#include <cstring>\n\n#include <ctime>\n\n#include <queue>\n\n#include <complex>\n\nusing namespace std;\n\n\n\n//conversion\n\n//------------------------------------------\n\ninline int toInt(string s) { int v; istringstream sin(s); sin >> v; return v; }\n\ntemplate<class T> inline string toString(T x) { ostringstream sout; sout << x; return sout.str(); }\n\n\n\n//math\n\n//-------------------------------------------\n\ntemplate<class T> inline T sqr(T x) { return x * x; }\n\n\n\n//typedef\n\n//------------------------------------------\n\ntypedef vector<int> VI;\n\ntypedef vector<VI> VVI;\n\ntypedef vector<string> VS;\n\ntypedef pair<int, int> PII;\n\ntypedef long long LL;\n\n\n\n//container util\n\n//------------------------------------------\n\n#define ALL(a)  (a).begin(),(a).end()\n\n#define RALL(a) (a).rbegin(), (a).rend()\n\n#define PB push_back\n\n#define MP make_pair\n\n#define SZ(a) int((a).size())\n\n#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)\n\n#define EXIST(s,e) ((s).find(e)!=(s).end())\n\n#define SORT(c) sort((c).begin(),(c).end())\n\n\n\n//repetition\n\n//------------------------------------------\n\n#define FOR(i,a,b) for(int i=(a);i<(b);++i)\n\n#define REP(i,n)  FOR(i,0,n)\n\n\n\n//constant\n\n//--------------------------------------------\n\nconst double EPS = 1e-10;\n\nconst double PI = acos(-1.0);\n\n\n\n//clear memory\n\n#define CLR(a) memset((a), 0 ,sizeof(a))\n\n\n\n//debug\n\n#define dump(x)  cerr << #x << '=' << (x) << endl;\n\n#define debug(x) cerr << #x << '=' << (x) << '('<<'L' << __LINE__ << ')' << ' ' << __FILE__ << endl;\n\n\n\nconst LL mod = 1000000007;\n\n\n\n\n\n#define Yes_ cout<<\"Yes\"<<endl; return 0;\n\n#define No_ cout<<\"No\"<<endl; return 0;\n\n\n\n\n\n#define YES_ cout<<\"YES\"<<endl; return 0;\n\n#define NO_ cout<<\"NO\"<<endl; return 0;\n\n\n\nint main() {\n\n\n\n\tstring s;\n\n\tcin >> s;\n\n\n\n\twhile (SZ(s) > 1) {\n\n\n\n\t\tstring s2 = s.substr(0, 5);\n\n\t\tint index = 5;\n\n\t\tif (s2 == \"dream\") {\n\n\t\t\t\n\n\t\t\tif (SZ(s) >= 12) {\n\n\t\t\t\tstring s3 = s.substr(5, 2);\n\n\t\t\t\tstring s4 = s.substr(7, 5);\n\n\n\n\t\t\t\tif (s3 == \"er\" && (s4 == \"dream\" || s4 == \"erase\")) {\n\n\t\t\t\t\tindex += 2;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\telse if (SZ(s) == 7) {\n\n\t\t\t\tstring s3 = s.substr(5, 2);\n\n\t\t\t\tif (s3 == \"er\") {\n\n\t\t\t\t\tindex += 2;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\telse if (s2 == \"erase\") {\n\n\n\n\t\t\tif (SZ(s) >= 11) {\n\n\n\n\t\t\t\tstring s3 = s.substr(5, 1);\n\n\t\t\t\tstring s4 = s.substr(6, 5);\n\n\n\n\t\t\t\tif (s3 == \"r\" && (s4 == \"dream\" || s4 == \"erase\")) {\n\n\t\t\t\t\tindex++;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\telse if (SZ(s) == 6) {\n\n\t\t\t\tstring s3 = s.substr(5, 1);\n\n\t\t\t\tif (s3 == \"r\") {\n\n\t\t\t\t\tindex += 1;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\telse {\n\n\t\t\tNO_;\n\n\t\t}\n\n\t\ts = s.substr(index);\n\n\t}\n\n\n\n\n\n\tYES_;\n\n\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002821"}
{"label": "pie_cpp_validation_002829", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 56, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 56, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002829.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002829", "task_path": "tasks/validation/pie_cpp_validation_002829.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include <algorithm>\n\n#include <iostream>\n\n#include <string>\n\n#include <vector>\n\nusing namespace std;\n\n\n\nstring dream_rev = \"maerd\";\n\nstring dreamer_rev = \"remaerd\";\n\nstring erase_rev = \"esare\";\n\nstring eraser_rev = \"resare\";\n\n\n\nbool start_with(string S, string prefix) {\n\n  return equal(begin(prefix), end(prefix), begin(S));\n\n}\n\n\n\nint main() {\n\n  string S;\n\n  cin >> S;\n\n  reverse(S.begin(), S.end());\n\n\n\n  while (true) {\n\n    if (S == \"\") {\n\n      cout << \"YES\" << endl;\n\n      break;\n\n    }\n\n\n\n    if (start_with(S, dream_rev) || start_with(S, erase_rev)) {\n\n      S = S.substr(5);\n\n    } else if (start_with(S, eraser_rev)) {\n\n      S = S.substr(6);\n\n    } else if (start_with(S, dreamer_rev)) {\n\n      S = S.substr(7);\n\n    } else {\n\n      cout << \"NO\" << endl;\n\n      break;\n\n    }\n\n  }\n\n\n\n  return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002829"}
{"label": "pie_cpp_validation_002836", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 53, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 53, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002836.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002836", "task_path": "tasks/validation/pie_cpp_validation_002836.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <string>\n\nusing namespace std;\n\ntypedef long long ll;\n\n\n\nint main() {\n\n  string s;\n\n  cin>>s;\n\n  int n = s.size();\n\n  char last = s[n-1];\n\n  bool cando = true;\n\n  string sub, sub2;\n\n  while(s.length() >= 5) {\n\n    if(last == 'm') {\n\n      //eat dream\n\n      sub = s.substr(n-5, 5);\n\n      if(sub != \"dream\") {\n\n        cando=false;\n\n        break;\n\n      }\n\n      s = s.substr(0, n-5);\n\n    } else if(last == 'r') {\n\n      //eat dreamer or eraser\n\n      sub = n >= 6 ? s.substr(n-6, 6) :\"\";\n\n      sub2 = n >= 7 ? s.substr(n-7, 7) : \"\";\n\n      if(sub == \"eraser\") {\n\n        s = s.substr(0, n-6);\n\n      } else if(sub2 == \"dreamer\") {\n\n        s = s.substr(0, n-7);\n\n      } else {\n\n        cando=false;\n\n        break;\n\n      }\n\n    } else if(last == 'e') {\n\n      //eat erase\n\n      sub = s.substr(n-5, 5);\n\n      if(sub != \"erase\") {\n\n        cando=false;\n\n        break;\n\n      }\n\n      s = s.substr(0, n-5);\n\n    } else {\n\n      cando=false;\n\n      break;\n\n    }\n\n    n = s.length();\n\n    if(n>=5) last = s[n-1];\n\n  }\n\n  if(s.length() == 0 && cando==true) cout << \"YES\";\n\n  else cout << \"NO\";\n\n  cout<<endl;\n\n  return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002836"}
{"label": "pie_cpp_validation_002839", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 10, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 10, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002839.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002839", "task_path": "tasks/validation/pie_cpp_validation_002839.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n#define LOCAL\n\nusing namespace std;\n\ntemplate <typename A, typename B>\n\nostream& operator <<(ostream& out, const pair<A, B>& a) {\n\nout << \"(\" << a.first << \",\" << a.second << \")\";\n\nreturn out;\n\n}\n\ntemplate <typename T, size_t N>\n\nostream& operator <<(ostream& out, const array<T, N>& a) {\n\nout << \"[\"; bool first = true;\n\nfor (auto& v : a) { out << (first ? \"\" : \", \"); out << v; first = 0;} out << \"]\";\n\nreturn out;\n\n}\n\ntemplate <typename T>\n\nostream& operator <<(ostream& out, const vector<T>& a) {\n\nout << \"[\"; bool first = true;\n\nfor (auto& v : a) { out << (first ? \"\" : \", \"); out << v; first = 0;} out << \"]\";\n\nreturn out;\n\n}\n\ntemplate <typename T, class Cmp>\n\nostream& operator <<(ostream& out, const set<T, Cmp>& a) {\n\nout << \"{\"; bool first = true;\n\nfor (auto& v : a) { out << (first ? \"\" : \", \"); out << v; first = 0;} out << \"}\";\n\nreturn out;\n\n}\n\ntemplate <typename U, typename T, class Cmp>\n\nostream& operator <<(ostream& out, const map<U, T, Cmp>& a) {\n\nout << \"{\"; bool first = true;\n\nfor (auto& p : a) { out << (first ? \"\" : \", \"); out << p.first << \":\" << p.second; first = 0;} out << \"}\";\n\nreturn out;\n\n}\n\n#ifdef LOCAL\n\n#define trace(...) __f(#__VA_ARGS__, __VA_ARGS__)\n\n#else\n\n#define trace(...) 42\n\n#endif\n\ntemplate <typename Arg1>\n\nvoid __f(const char* name, Arg1&& arg1){\n\ncerr << name << \": \" << arg1 << endl;\n\n}\n\ntemplate <typename Arg1, typename... Args>\n\nvoid __f(const char* names, Arg1&& arg1, Args&&... args){\n\nconst char* comma = strchr(names + 1, ',');\n\ncerr.write(names, comma - names) << \": \" << arg1 << \" |\";\n\n__f(comma + 1, args...);\n\n}\n\n#define rep(i,n) for(int i=0; i<(n); i++)\n\nusing ll = long long;\n\n#define int long long\n\nusing P = pair<int,int>;\n\n//#########################################\n\nvector<string> str = {\"dreameraser\",\"dreamerase\",\"dreamer\",\"dream\",\"eraser\",\"erase\"};\n\nsigned main(){\n\n    string s;cin >> s;\n\n    int n = s.size();\n\n    auto check = [&](int i,string t){\n\n    \n\n        return s.substr(i,(int)t.size()) == t;\n\n    };\n\n    for(int now = 0;now < n;){\n\n        bool found = false;\n\n        rep(i,6){\n\n            if(check(now,str[i])){\n\n                now += (int)str[i].size();\n\n                found = true;\n\n                break;\n\n            }\n\n        }\n\n        if(!found){\n\n            cout << \"NO\" << endl;\n\n            return 0;\n\n        }\n\n\n\n    }\n\n    cout << \"YES\" << endl;\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002839"}
{"label": "pie_cpp_validation_002843", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 13, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 13, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002843.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002843", "task_path": "tasks/validation/pie_cpp_validation_002843.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n// C++ 14\n\n#include <bits/stdc++.h>\n\nusing namespace std;\n\n#define ll long long\n\n#define loop(__x, __start, __end) for(ll __x = __start; __x < __end; __x++)\n\n\n\nvector<string> S {\n\n  \"dream\",\n\n  \"dreamer\",\n\n  \"eraser\",\n\n  \"erase\",\n\n};\n\n\n\nint main() {\n\n  string t; cin >> t;\n\n  reverse(t.begin(), t.end());\n\n  for (auto&& s: S) reverse(s.begin(), s.end());\n\n  while (t != \"\") {\n\n    bool ok = false;\n\n    for (auto &&s: S) {\n\n      if (t.find(s) == 0) {\n\n        t = t.substr(s.size());\n\n        ok = true;\n\n        break;\n\n      }\n\n    }\n\n    \n\n    if (!ok) {\n\n      cout << \"NO\" << endl;\n\n      return 0;\n\n    }\n\n  }\n\n  \n\n  cout << \"YES\" << endl;\n\n  return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002843"}
{"label": "pie_cpp_validation_002855", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 6, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 6, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002855.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002855", "task_path": "tasks/validation/pie_cpp_validation_002855.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <sstream>\n\n#include <regex>\n\n#include <cstdio>\n\n#include <cmath>\n\n#include <cctype>\n\n#include <string>\n\n#include <vector>\n\n#include <list>\n\n#include <set>\n\n#include <map>\n\n#include <queue>\n\n#include <stack>\n\n#include <algorithm>\n\n#include <functional>\n\n\n\nusing namespace std;\n\nusing ll = long long int;\n\n#define rep(i,n) for(int i = 0; i < n; i++)\n\n#define FOR(i, a, b)  for(int i = (a); i < (b) ; i++)\n\n#define pb push_back\n\n#define SORT(v,n) sort(v, v+n)\n\n#define ALL(x) (x).begin(),(x).end()\n\n#define debug(x) cerr << #x << \": \" << x << '\\n'\n\n#define elif else if\n\n#define itn ll\n\n#define int ll\n\n//const int INF = 100100100;\n\nconst int INF = (1LL<<32);\n\nconst int MOD = (int)1e9 + 7;\n\nconst double EPS = 1e-9;\n\nint dx[8] = { 1, 0, -1, 0, 1, -1, -1, 1 };\n\nint dy[8] = { 0, 1, 0, -1, 1, 1, -1, -1 };\n\ntypedef vector<vector<int>> vvi;\n\ntypedef vector<vector<vector<int>>> vvvi;\n\n\n\nstring divide[4] = { \"dream\",\"dreamer\",\"erase\",\"eraser\" };\n\n\n\nstring s;\n\nbool can = false;\n\nbool dp[1000010];\n\n\n\nsigned main() {\n\n\tios::sync_with_stdio(false);\n\n\tcin >> s;\n\n\tdp[0] = true;\n\n\trep(i, s.size()) {\n\n\t\tif (!dp[i]) continue;\n\n\t\trep(j, 4) {\n\n\t\t\tstring d = divide[j];\n\n\t\t\tif (s.substr(i,d.size()) == d) {\n\n\t\t\t\tdp[i + d.size()] = true;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tif (dp[s.size()]) cout << \"YES\\n\";\n\n\telse cout << \"NO\\n\";\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002855"}
{"label": "pie_cpp_validation_002864", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 10, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 10, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002864.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002864", "task_path": "tasks/validation/pie_cpp_validation_002864.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\ntypedef long long ll;\n\nint main()\n\n{\n\n    string s;\n\n    cin >> s;\n\n    cout << (regex_match(s, regex(\"(dream(er)?|eraser?)*\")) ? \"YES\" : \"NO\") << endl;\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002864"}
{"label": "pie_cpp_validation_002870", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 24, "hidden_test_count": 1, "problem_id": "p03854", "reference_metric": "runtime_cpu_ns", "reference_value": 24, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_002870.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_002870", "task_path": "tasks/validation/pie_cpp_validation_002870.json", "visible_test_count": 1}, "problem_id": "p03854", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\nerasedream\n\nExpected output:\nYES\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n\n\nusing namespace std;\n\ntypedef long long ll;\n\n#define REP(i, n) for(int i = 0; i < n; i++)\n\n#define REPR(i, n) for(int i = n; i >= 0; i--)\n\n#define FOR(i, m, n) for(int i = m; i < n; i++)\n\n#define FORR(i, m, n) for(int i = m; i >= n; i--)\n\n#define INF (ll)2e9\n\n#define MOD ((ll)1e9+7)\n\n#define ALL(v) v.begin(), v.end()\n\n#define SZ(x) ((int)(x).size())\n\n#define ZERO(a) memset(a,0,sizeof(a))\n\n#define MINUS(a) memset(a,0xff,sizeof(a))\n\n#define y0 y3487465\n\n#define y1 y8687969\n\n#define j0 j1347829\n\n#define j1 j234892\n\n#define next asdnext\n\n#define prev asdprev\n\n#define bit(n) (1LL<<(n))\n\n\n\ntemplate<class T>\n\nbool chmax(T &a, const T &b) {\n\n    if (a < b) {\n\n        a = b;\n\n        return 1;\n\n    }\n\n    return 0;\n\n}\n\n\n\ntemplate<class T>\n\nbool chmin(T &a, const T &b) {\n\n    if (b < a) {\n\n        a = b;\n\n        return 1;\n\n    }\n\n    return 0;\n\n}\n\n\n\ntemplate<class InputIterator>\n\nInputIterator adv(InputIterator x, typename std::iterator_traits<InputIterator>::difference_type n) {\n\n    advance(x, n);\n\n    return x;\n\n}\n\n\n\nclass mod {\n\n    static ll fact[];\n\npublic:\n\n\n\n    template<class... A>\n\n    static ll mul(A... args) {\n\n        ll res = 1;\n\n        for (ll i : std::initializer_list < ll > {args...}) {\n\n            res = (res * i) % MOD;\n\n        }\n\n        return res;\n\n    }\n\n\n\n    static ll power(ll base, ll exp) {\n\n        if (exp == 0) return 1;\n\n        if (exp & 1) {\n\n            return mul(base, power(base, exp - 1));\n\n        } else {\n\n            ll p = power(base, exp / 2);\n\n            return mul(p, p);\n\n        }\n\n    }\n\n\n\n    static ll factorial(int n) {\n\n        if (fact[n] != 0) return fact[n];\n\n        if (n == 0) return 1;\n\n        return fact[n] = mul(n, factorial(n - 1));\n\n    }\n\n\n\n    static ll inverse(int n) {\n\n        return power(n, MOD - 2);\n\n    }\n\n\n\n    static ll comb(int n, int r) {\n\n        if (r < 0 || r > n) return 0;\n\n        return mul(factorial(n), inverse(factorial(n - r)), inverse(factorial(r)));\n\n    }\n\n\n\n    template<class... A>\n\n    static ll div(ll dividend, A... args) {\n\n        ll res = dividend;\n\n        for (ll i : std::initializer_list < ll > {args...}) {\n\n            res = mul(res, inverse(i));\n\n        }\n\n        return res;\n\n    }\n\n\n\n    template<class... A>\n\n    static ll add(A... args) {\n\n        ll res = 0;\n\n        for (ll i : std::initializer_list < ll > {args...}) {\n\n            res = (res + i) % MOD;\n\n        }\n\n        return res;\n\n    }\n\n\n\n    template<class... A>\n\n    static ll sub(ll l, A... args) {\n\n        ll res = l;\n\n        for (ll i : std::initializer_list < ll > {args...}) {\n\n            res = (res - i + MOD) % MOD;\n\n        }\n\n        return res;\n\n    }\n\n};\n\n\n\nll mod::fact[(int) 1e6 + 1];\n\n\n\nint ni() {\n\n    int i;\n\n    cin >> i;\n\n    return i;\n\n}\n\n\n\nll nll() {\n\n    ll l;\n\n    cin >> l;\n\n    return l;\n\n}\n\n\n\nint main() {\n\n    string s;\n\n    cin >> s;\n\n    int N = s.length();\n\n\n\n    string words[] = {\"dream\", \"dreamer\", \"erase\", \"eraser\"};\n\n\n\n    REPR(i, N-1) {\n\n        REP(j, 4) {\n\n            if (s.substr(i, s.length()) == words[j]) {\n\n                s.erase(s.end()-words[j].length(), s.end());\n\n                break;\n\n            }\n\n        }\n\n    }\n\n\n\n    cout << (s == \"\" ? \"YES\" : \"NO\") << endl;\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_002870"}
{"label": "pie_cpp_validation_003041", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 85, "hidden_test_count": 1, "problem_id": "p03343", "reference_metric": "runtime_cpu_ns", "reference_value": 85, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_003041.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_003041", "task_path": "tasks/validation/pie_cpp_validation_003041.json", "visible_test_count": 1}, "problem_id": "p03343", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5 3 2\n4 3 1 5 2\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include<cstdio>\n\n#include<queue>\n\n#include<algorithm>\n\nusing namespace std;\n\nconst int MAXN = 2000;\n\nconst int INF = (1<<30);\n\nint A[MAXN + 5];\n\npriority_queue<int, vector<int>, greater<int> >q1, q2;\n\nint main() {\n\n\tint N, K, Q, ans = INF;\n\n\tscanf(\"%d%d%d\", &N, &K, &Q);\n\n\tfor(int i=1;i<=N;i++)\n\n\t\tscanf(\"%d\", &A[i]);\n\n\tfor(int i=1;i<=N;i++) {\n\n\t\tint le = 1;\n\n\t\tfor(int j=1;j<=N+1;j++) {\n\n\t\t\tif( A[j] < A[i] ) {\n\n\t\t\t\tint len = j - le;\n\n\t\t\t\tfor(int k=K;k<=len;k++) {\n\n\t\t\t\t\tq2.push(q1.top());\n\n\t\t\t\t\tq1.pop();\n\n\t\t\t\t}\n\n\t\t\t\tle = j+1;\n\n\t\t\t\twhile( !q1.empty() )\n\n\t\t\t\t\tq1.pop();\n\n\t\t\t}\n\n\t\t\telse q1.push(A[j]);\n\n\t\t}\n\n\t\tif( q2.size() >= Q ) {\n\n\t\t\tfor(int j=1;j<Q;j++)\n\n\t\t\t\tq2.pop();\n\n\t\t\tans = min(ans, q2.top() - A[i]);\n\n\t\t}\n\n\t\twhile( !q2.empty() )\n\n\t\t\tq2.pop();\n\n\t}\n\n\tprintf(\"%d\\n\", ans);\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_003041"}
{"label": "pie_cpp_validation_003049", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 40, "hidden_test_count": 1, "problem_id": "p03343", "reference_metric": "runtime_cpu_ns", "reference_value": 40, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_003049.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_003049", "task_path": "tasks/validation/pie_cpp_validation_003049.json", "visible_test_count": 1}, "problem_id": "p03343", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5 3 2\n4 3 1 5 2\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n\n\n#define For(i, j, k) for (int i = j; i <= k; ++ i)\n\n\n\nusing namespace std;\n\n\n\nconst int N = 2e3 + 10;\n\nint a[N], t[N], n, k, q, b[N];\n\n\n\nint main() {\n\n\n\n\tscanf(\"%d%d%d\", &n, &k, &q);\n\n\tFor(i, 1, n) scanf(\"%d\", a + i); a[++ n] = -1;\n\n\n\n\tint ans = INT_MAX;\n\n\tFor(tt, 1, n) {\n\n\t\tint nw = a[tt], c = 0, lstps = 1;\n\n\n\n\t\tFor(i, 1, n) if (a[i] < nw) {\n\n\t\t\tif (i - lstps < k) { lstps = i + 1; continue; }\n\n\t\t\tint cnt = 0;\n\n\t\t\tFor(j, lstps, i - 1) b[++ cnt] = a[j];\n\n\t\t//\tnth_element(b + 1, b + cnt - k, b + cnt + 1);\n\n\t\t\tsort(b + 1, b + 1 + cnt);\n\n\t\t\tFor(j, 1, cnt - k + 1) t[++ c] = b[j];\n\n\t\t\tlstps = i + 1;\n\n\t\t}\n\n\t\n\n\t\tif (c < q) continue;\n\n\t\t//nth_element(t + 1, t + q, t + c + 1);\n\n\t\tsort(t + 1, t + 1 + c);\n\n\t\tans = min(ans, t[q] - nw);\n\n\t}\n\n\n\n\tcout << ans << endl;\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_003049"}
{"label": "pie_cpp_validation_003065", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 95, "hidden_test_count": 1, "problem_id": "p03343", "reference_metric": "runtime_cpu_ns", "reference_value": 95, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_003065.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_003065", "task_path": "tasks/validation/pie_cpp_validation_003065.json", "visible_test_count": 1}, "problem_id": "p03343", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5 3 2\n4 3 1 5 2\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include<bits/stdc++.h>\n\n//#include<string>\n\nusing namespace std;\n\nint n,k,q,y,a[2001],b[2001],t,ll,s[2001],ss,ans=2e9;\n\nbool cmp(int a,int b){\n\n  return a<b;\n\n}\n\nint main(){\n\n  scanf(\"%d %d %d\",&n,&k,&q);\n\n  for(register int i=1;i<=n;i++)\n\n    scanf(\"%d\",&a[i]);\n\n  for(register int j=1;j<=n;j++){\n\n  \ty=a[j];//\u679a\u4e3e\u80fd\u88ab\u5220\u9664\u7684\u6700\u5c0f\u5143\u7d20y\n\n  \tmemset(s,0,sizeof(s));\n\n  \tss=0;\n\n\tt=0;\n\n\tfor(register int i=1;i<=n+1;i++){\n\n  \t   if(i==n+1||a[i]<y){//\u5982\u679ca[i]\u4e3a\u4e00\u6bb5\u7684\u8fb9\u754c\n\n\t\t sort(b+1,b+t+1,cmp);\n\n\t\t ll=t-k+1;//\u5f53\u524d\u8fd9\u6bb5\u80fd\u5220\u7684\u6570\u7684\u4e2a\u6570 \n\n\t\t for(register int l=1;l<=ll;l++)\n\n\t\t    s[++ss]=b[l];//\u628a\u80fd\u5220\u7684\u6570\u5b58\u5728s\u6570\u7ec4\u91cc\n\n\t\t memset(b,0,sizeof(b));\n\n\t\t t=0;//\u6e05\u7a7ab\u6570\u7ec4 \n\n\t   }\n\n\t   else{\n\n\t   \t b[++t]=a[i];//\u4e0d\u662f\u8fb9\u754c\u5c31\u52a0\u5165\u5230\u5f53\u524d\u8fd9\u6bb5 \n\n\t   }\n\n\t}\n\n\tif(ss<q){//\u5982\u679c\u80fd\u88ab\u5220\u7684\u6570\u4e0d\u8db3q\u4e2a\uff0c\u5c31\u76f4\u63a5\u679a\u4e3e\u4e0b\u4e2ay \n\n\t  continue;\n\n\t}\n\n\t  sort(s+1,s+ss+1,cmp);\n\n\t  //printf(\"%d %d\\n\",s[q],y);\n\n\t  ans=min(ans,s[q]-y);//s[q]\u5c31\u662fx,\u8fd9\u91cc\u662f\u66f4\u65b0ans\n\n  }\n\n  printf(\"%d\\n\",ans);\n\n  return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_003065"}
{"label": "pie_cpp_validation_003079", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 178, "hidden_test_count": 1, "problem_id": "p03343", "reference_metric": "runtime_cpu_ns", "reference_value": 178, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_003079.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_003079", "task_path": "tasks/validation/pie_cpp_validation_003079.json", "visible_test_count": 1}, "problem_id": "p03343", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5 3 2\n4 3 1 5 2\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\n\n\nusing namespace std;\n\n\n\nconst double PI = 3.14159265358979323846;\n\ntypedef long long ll;\n\ntypedef pair<ll, ll> P;\n\nconst double EPS = 1e-9;\n\n#define rep(i, n) for (int i = 0; i < (n); ++i)\n\n//#define rep(i, n) for (ll i = 0; i < (n); ++i)\n\nconst ll INF = 10e14;\n\n#define cmin(x, y) x = min(x, y)\n\n#define cmax(x, y) x = max(x, y)\n\n#define ret() return 0;\n\n\n\ndouble equal(double a, double b) {\n\n    return fabs(a - b) < DBL_EPSILON;\n\n}\n\n\n\nstd::istream &operator>>(std::istream &in, set<string> &o) {\n\n    string a;\n\n    in >> a;\n\n    o.insert(a);\n\n    return in;\n\n}\n\n\n\nstd::istream &operator>>(std::istream &in, queue<int> &o) {\n\n    ll a;\n\n    in >> a;\n\n    o.push(a);\n\n    return in;\n\n}\n\n\n\nll solve(vector<ll> &numbers, int n, int k, int q, ll target) {\n\n    vector<vector<ll>> tmp(1);\n\n    for (ll l : numbers) {\n\n        if (l < target) tmp.push_back({});\n\n        else tmp.back().push_back(l);\n\n    }\n\n    vector<ll> candidate;\n\n    for (vector<ll> &v : tmp) {\n\n        if (v.size() < k - 1) continue;\n\n        sort(v.begin(), v.end());\n\n        int c = v.size() - k + 1;\n\n        rep(i, c) candidate.push_back(v[i]);\n\n    }\n\n    sort(candidate.begin(), candidate.end());\n\n    if (candidate.size() < q) return INF;\n\n    return candidate[q - 1] - target;\n\n}\n\n\n\nint main() {\n\n    int n, k, q;\n\n    cin >> n >> k >> q;\n\n    vector<ll> numbers(n);\n\n    rep(i, n)cin >> numbers[i];\n\n    ll ans = INF;\n\n    rep(i, n) cmin(ans, solve(numbers, n, k, q, numbers[i]));\n\n    cout << ans << endl;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_003079"}
{"label": "pie_cpp_validation_003091", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 96, "hidden_test_count": 1, "problem_id": "p03343", "reference_metric": "runtime_cpu_ns", "reference_value": 96, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_003091.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_003091", "task_path": "tasks/validation/pie_cpp_validation_003091.json", "visible_test_count": 1}, "problem_id": "p03343", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5 3 2\n4 3 1 5 2\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <algorithm>\n\n#include <iostream>\n\n#include <set>\n\n#include <vector>\n\n\n\nusing namespace std;\n\n\n\ntypedef long long ll;\n\ntypedef pair<ll, ll> P;\n\n\n\n#define MOD 1000000007\n\n#define REP(i, N) for (int i = 0; i < N; ++i)\n\n#define REP1(i, N) for (int i = 1; i <= N; ++i)\n\n#define RREP(i, N) for (int i = N - 1; i >= 0; --i)\n\n#define ALL(a) a.begin(), a.end()\n\n\n\nint main() {\n\n  int n, k, q;\n\n  cin >> n >> k >> q;\n\n  int a[n];\n\n  REP(i, n) cin >> a[i];\n\n  int ans = 2000000000;\n\n  for (int y : a) {\n\n    vector<int> vec;\n\n    multiset<int> st;\n\n    REP(i, n + 1) {\n\n      if (i == n || a[i] < y) {\n\n        sort(ALL(vec));\n\n        int len = vec.size();\n\n        REP(j, len - k + 1) st.insert(vec[j]);\n\n        vec.clear();\n\n      } else {\n\n        vec.push_back(a[i]);\n\n      }\n\n    }\n\n    if (st.size() < q) continue;\n\n    auto it = st.begin();\n\n    REP(i, q - 1) it++;\n\n    int x = *it;\n\n    ans = min(ans, x - y);\n\n  }\n\n  cout << ans << endl;\n\n  return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_003091"}
{"label": "pie_cpp_validation_003092", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 204, "hidden_test_count": 1, "problem_id": "p03343", "reference_metric": "runtime_cpu_ns", "reference_value": 204, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_003092.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_003092", "task_path": "tasks/validation/pie_cpp_validation_003092.json", "visible_test_count": 1}, "problem_id": "p03343", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5 3 2\n4 3 1 5 2\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <limits>\n\nusing ll          = long long;\n\nconstexpr int INF = std::numeric_limits<int>::max() / 2;\n\nconstexpr ll LNF  = std::numeric_limits<ll>::max() / 2;\n\n\n\n#ifndef DEBUG_HPP_OB5Y82L9\n\n#define DEBUG_HPP_OB5Y82L9\n\n\n\n#ifndef STREAM_HPP_L5EPV267\n\n#define STREAM_HPP_L5EPV267\n\n#include <iostream>\n\n\n\nnamespace pcl {\n\nstruct empty_stream_buf : public std::streambuf {\n\n    char dummybuf[8];\n\n\n\n  protected:\n\n    virtual int overflow(int c) {\n\n        setp(dummybuf, dummybuf + sizeof(dummybuf));\n\n        return c == traits_type::eof() ? '\\0' : c;\n\n    }\n\n};\n\n\n\nstruct empty_stream : private empty_stream_buf, public std::ostream {\n\n  public:\n\n    empty_stream()\n\n        : std::ostream(this) {}\n\n    empty_stream_buf const *rdbuf() const { return this; }\n\n};\n\n} // namespace pcl\n\n\n\n#endif /* end of include guard: STREAM_HPP_L5EPV267 */\n\n\n\n#include <iostream>\n\n\n\n#ifndef PA_DEBUG\n\nnamespace pcl {\n\npcl::empty_stream _debg;\n\n#define cerr pcl::_debg\n\n} // namespace pcl\n\n#endif\n\n\n\n#endif /* end of include guard: DEBUG_HPP_OB5Y82L9 */\n\n\n\n\n\n#include <bits/stdc++.h>\n\nusing namespace std;\n\n\n\ntemplate <typename T>\n\nvoid print(vector<T> const &x, string s = \"\") {\n\n    cerr << s;\n\n    copy(x.begin(), x.end(), ostream_iterator<ll>(cerr, \", \"));\n\n    cerr << endl;\n\n}\n\n\n\nll compute(vector<ll> v, int K, int Q, vector<int> &seps) {\n\n    int N = v.size();\n\n    sort(seps.begin(), seps.end());\n\n    seps.push_back(N);\n\n    print(seps, \"seps: \");\n\n    for (int i = 1; i < (int)seps.size(); i++) {\n\n        sort(v.begin() + seps[i - 1] + 1, v.begin() + seps[i]);\n\n    }\n\n    print(v, \"sorted v: \");\n\n\n\n    vector<ll> ans;\n\n    ans.reserve(N);\n\n    for (int i = 1; i < (int)seps.size(); i++) {\n\n        ans.insert(ans.end(), v.begin() + seps[i - 1] + 1,\n\n                   v.begin() + seps[i - 1] + 1 +\n\n                       max(0, seps[i] - seps[i - 1] - 1 - K + 1));\n\n    }\n\n    print(ans, \"ans: \");\n\n    auto a = *min_element(ans.begin(), ans.end());\n\n    nth_element(ans.begin(), ans.begin() + Q - 1, ans.end());\n\n    sort(ans.begin(), ans.end());\n\n    seps.pop_back();\n\n    return Q <= (int)ans.size() ? ans[Q - 1] - a : LNF;\n\n}\n\n\n\nint main() {\n\n    int N, K, Q;\n\n    cin >> N >> K >> Q;\n\n    vector<ll> orig(N);\n\n    for (int i = 0; i < N; i++) { cin >> orig[i]; }\n\n\n\n    vector<pair<ll, int>> cp(N);\n\n    for (int i = 0; i < N; i++) {\n\n        cp[i].first  = orig[i];\n\n        cp[i].second = i;\n\n    }\n\n    sort(cp.begin(), cp.end());\n\n\n\n    vector<int> seps = {-1};\n\n    ll mi            = compute(orig, K, Q, seps);\n\n    for (auto const &p : cp) {\n\n        seps.push_back(p.second);\n\n        ll res = compute(orig, K, Q, seps);\n\n        if (res == LNF) break; // ??????\n\n        mi = min(mi, res);\n\n    }\n\n    cout << mi << endl;\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_003092"}
{"label": "pie_cpp_validation_003094", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 177, "hidden_test_count": 1, "problem_id": "p03343", "reference_metric": "runtime_cpu_ns", "reference_value": 177, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_003094.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_003094", "task_path": "tasks/validation/pie_cpp_validation_003094.json", "visible_test_count": 1}, "problem_id": "p03343", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5 3 2\n4 3 1 5 2\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <bits/stdc++.h>\n\nusing namespace std;\n\ntypedef long long ll;\n\ntypedef pair<ll, ll> pll;\n\n\n\nint main()\n\n{\n\n    cin.tie(0);\n\n    ios::sync_with_stdio(false);\n\n    ll N, K, Q;\n\n    cin >> N >> K >> Q;\n\n    vector<ll> nums(N);\n\n    vector<pll> sortNums;\n\n    for (int i = 0; i < N; i++)\n\n    {\n\n        ll A;\n\n        cin >> A;\n\n        nums.at(i) = A;\n\n    }\n\n    ll answer = 1e12;\n\n    for (int i = 0; i < N; i++)\n\n    {\n\n        ll minValue = nums.at(i);\n\n        vector<vector<ll>> dividedNums;\n\n        dividedNums.push_back(vector<ll>());\n\n        for (int j = 0; j < N; j++)\n\n        {\n\n            if (nums.at(j) < minValue)\n\n            {\n\n                dividedNums.push_back(vector<ll>());\n\n            }\n\n            else\n\n            {\n\n                dividedNums.back().push_back(nums.at(j));\n\n            }\n\n        }\n\n        vector<ll> kouhoNums;\n\n        for (auto dividedNum : dividedNums)\n\n        {\n\n            if (dividedNum.size() < K)\n\n            {\n\n                continue;\n\n            }\n\n            sort(dividedNum.begin(), dividedNum.end());\n\n            for (int j = 0; j < min(Q, (ll)dividedNum.size() - K + 1); j++)\n\n            {\n\n                kouhoNums.push_back(dividedNum.at(j));\n\n            }\n\n        }\n\n        if (kouhoNums.size() < Q)\n\n        {\n\n            continue;\n\n        }\n\n        sort(kouhoNums.begin(), kouhoNums.end());\n\n        answer = min(answer, kouhoNums.at(Q - 1) - kouhoNums.at(0));\n\n    }\n\n    cout << answer << endl;\n\n    return 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_003094"}
{"label": "pie_cpp_validation_003103", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 65, "hidden_test_count": 1, "problem_id": "p03343", "reference_metric": "runtime_cpu_ns", "reference_value": 65, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_003103.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_003103", "task_path": "tasks/validation/pie_cpp_validation_003103.json", "visible_test_count": 1}, "problem_id": "p03343", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5 3 2\n4 3 1 5 2\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include<cstdio>\n\n#include<cstring>\n\n#include<algorithm>\n\nconst int N=2003,INF=0x3f3f3f3f,D=1<<11;\n\nint n,m,q,a[N],p[N],ans=INF;\n\n#define M (L+R>>1)\n\nstruct segment_tree{\n\n\tint mn[1<<12],mx[1<<12],s[1<<12];\n\n\tsegment_tree(){memset(mn,63,sizeof mn);}\n\n\tint Min(int l,int r){\n\n\t\tint res=n+1;\n\n\t\tif(l>r)return res;\n\n\t\tfor(l=l+D-1,r=r+D+1;l^r^1;l>>=1,r>>=1){\n\n\t\t  if(~l&1)res=std::min(res,mn[l^1]);\n\n\t\t  if( r&1)res=std::min(res,mn[r^1]);\n\n\t\t}return res;\n\n\t}\n\n\tint Max(int l,int r){\n\n\t\tint res=0;\n\n\t\tif(l>r)return res;\n\n\t\tfor(l=l+D-1,r=r+D+1;l^r^1;l>>=1,r>>=1){\n\n\t\t  if(~l&1)res=std::max(res,mx[l^1]);\n\n\t\t  if( r&1)res=std::max(res,mx[r^1]);\n\n\t\t}return res;\n\n\t}\n\n\tint Count(int l,int r){\n\n\t\tint res=0;\n\n\t\tif(l>r)return res;\n\n\t\tfor(l=l+D-1,r=r+D+1;l^r^1;l>>=1,r>>=1){\n\n\t\t  if(~l&1)res+=s[l^1];\n\n\t\t  if( r&1)res+=s[r^1];\n\n\t\t}return res;\n\n\t}\n\n\tvoid Update(int k,int a){\n\n\t\tfor(k+=D,mn[k]=mx[k]=a,k>>=1;k;k>>=1)\n\n\t\t  mn[k]=std::min(mn[k<<1],mn[k<<1|1]),\n\n\t\t  mx[k]=std::max(mx[k<<1],mx[k<<1|1]);\n\n\t}\n\n\tvoid Erase(int k){\n\n\t\tfor(k+=D,s[k]=1,k>>=1;k;k>>=1)\n\n\t\t  s[k]=s[k<<1]+s[k<<1|1];\n\n\t}\n\n}f,g;\n\nbool Cmp(const int&i,const int&j){return a[i]<a[j];}\n\nint main(){\n\n\tint mn,mx,l,r;\n\n\tscanf(\"%d%d%d\",&n,&m,&q);\n\n\tfor(int i=1;i<=n;i++)scanf(\"%d\",a+i),p[i]=i;\n\n\tstd::sort(p+1,p+1+n,Cmp);\n\n\tfor(int j=1,i,jj;j<=n;j++){\n\n\t  i=p[j];jj=j;\n\n\t  g=f;mx=0,mn=INF;\n\n\t  for(int k=1;k<=q;k++){\n\n\t\tfor(;jj<=n&&(r=g.Min(p[jj]+1,n),l=g.Max(1,p[jj]-1),r-l-g.Count(l+1,r-1)<=m);jj++);\n\n\t\tif(jj>n)goto Brk;\n\n\t\tmx=std::max(mx,a[p[jj]]);\n\n\t\tmn=std::min(mn,a[p[jj]]);\n\n\t\tg.Erase(p[jj]);jj++;\n\n\t  }\n\n\t  ans=std::min(ans,mx-mn);\n\n\t  Brk:;\n\n\t  f.Update(i,i);\n\n\t}printf(\"%d\",ans);\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_003103"}
{"label": "pie_cpp_validation_003106", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 20, "hidden_test_count": 1, "problem_id": "p03343", "reference_metric": "runtime_cpu_ns", "reference_value": 20, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_003106.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_003106", "task_path": "tasks/validation/pie_cpp_validation_003106.json", "visible_test_count": 1}, "problem_id": "p03343", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n5 3 2\n4 3 1 5 2\n\nExpected output:\n1\n\n\nProgram:\n```cpp\n#include <iostream>\n\n#include <cstring>\n\n#include <algorithm>\n\n#include <queue>\n\n#include <vector>\n\n#include <cstdio>\n\n#include <cmath>\n\nusing namespace std;\n\nconst int maxn=2000+5;\n\nint a[maxn],num[maxn],len;\n\nint n,k,m;\n\nbool b[maxn];\n\nint c[maxn];\n\ninline bool chk2(int si,int x){\n\n\tint r=a[si]+x,l=a[si];\n\n\tint ans=0;\n\n\tfor (int i=1;i<=n;i++){\n\n\t\tif (l<=a[i]&&a[i]<=r){\n\n\t\t\tc[i]=1;\n\n\t\t}\n\n\t\telse if (a[i]>r) c[i]=2;\n\n\t\telse c[i]=0;\n\n\t}\n\n\tint cur1=0,cur2=0;\n\n\tfor (int i=1;i<=n;i++){\n\n\t\tif (si==i) continue;\n\n\t\tif (c[i]==0){\n\n\t\t\tif (cur1>=k){\n\n\t\t\t\tans+=min(cur2,cur1-k+1);\n\n\t\t\t}\n\n\t\t\tcur2=cur1=0;\n\n\t\t\tcontinue;\n\n\t\t}\n\n\t\tif (c[i]==2){\n\n\t\t\tcur1++;\n\n\t\t\tcontinue;\n\n\t\t}\n\n\t\tif (c[i]==1){\n\n\t\t\tcur1++;\n\n\t\t\tcur2++;\n\n\t\t\tcontinue;\n\n\t\t}\n\n\t}\n\n\tif (cur1>=k){\n\n\t\tans+=min(cur2,cur1-k+1);\n\n\t}\n\n\treturn ans>=m-1;\n\n}\n\ninline bool chk(int x){\n\n\tfor (int i=1;i<=n;i++){\n\n\t\tif (b[i]==0) continue;\n\n\t\tif (chk2(i,x)){\n\n\t\t\treturn true;\n\n\t\t}\n\n\t}\n\n\treturn false;\n\n}\n\nint main(){\n\n\tcin>>n>>k>>m;\n\n\tfor (int i=1;i<=n;i++){\n\n\t\tscanf(\"%d\",&a[i]);\n\n\t}\n\n\tfor (int l=1;l+k-1<=n;l++){\n\n\t\tint r=l+k-1;\n\n\t\tint cur=2e9;\n\n\t\tfor (int i=l;i<=r;i++){\n\n\t\t\tcur=min(cur,a[i]);\n\n\t\t}\n\n\t\tfor (int i=l;i<=r;i++){\n\n\t\t\tif (cur==a[i]) b[i]=1;\n\n\t\t}\n\n\t}\n\n\tint l=0,r=1e9,ans=-1;\n\n\twhile(l<=r){\n\n\t\tint mid=(l+r)/2;\n\n\t\tif (chk(mid)){\n\n\t\t\tr=mid-1;\n\n\t\t\tans=mid;\n\n\t\t}\n\n\t\telse l=mid+1;\n\n\t}\n\n\tcout<<ans<<endl;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_003106"}
{"label": "pie_cpp_validation_003649", "metadata": {"data_source": "pie-cpp-perf", "gem5_cycles": 420, "hidden_test_count": 1, "problem_id": "p00487", "reference_metric": "runtime_cpu_ns", "reference_value": 420, "source_task_path": "/workspace/runs/pie-tasks-full-20260706/validation/pie_cpp_validation_003649.json", "split": "validation", "subset": "eval", "task_id": "pie_cpp_validation_003649", "task_path": "tasks/validation/pie_cpp_validation_003649.json", "visible_test_count": 1}, "problem_id": "p00487", "prompt": "Optimize the following C++20 program while preserving its exact behavior.\nReturn exactly one <reasoning>...</reasoning> block followed by exactly one fenced cpp code block.\nDo not mention or rely on hidden tests. The program must read stdin and write stdout.\n\nVisible tests:\nInput:\n6\n12 8\n5 9\n2 4\n10 12\n6 7\n13 9\n\nExpected output:\n3\n\n\nProgram:\n```cpp\n#include<iostream>\n\n#include<algorithm>\n\n#include<vector>\n\nusing namespace std;\n\npair<long long, long long>x[1 << 19];\n\nlong long bit[2][1 << 19], n, g[1 << 19];\n\nvoid add(long long q, long long a, long long x) {\n\n\twhile (a <= 400000) {\n\n\t\tbit[q][a] += x;\n\n\t\ta += a&-a;\n\n\t}\n\n}\n\nlong long sum(long long q, long long a) {\n\n\tlong long s = 0;\n\n\twhile (a >= 1) {\n\n\t\ts += bit[q][a];\n\n\t\ta -= a&-a;\n\n\t}\n\n\treturn s;\n\n}\n\nbool solve(long long g, long long p) {\n\n\tif (sum(1, g) == 0)return true;\n\n\tlong long K = (sum(0, g) - 1) / sum(1, g);\n\n\tif (K >= p)return false;\n\n\treturn true;\n\n}\n\nint main() {\n\n\tcin >> n; vector<pair<long long, long long> >vec;\n\n\tfor (long long i = 0; i < n; i++) {\n\n\t\tcin >> x[i].second >> x[i].first;\n\n\t}\n\n\tsort(x, x + n);long long maxn = 0;\n\n\tfor (int i = 0; i < n; i++) {\n\n\t\tvec.push_back(make_pair(x[i].second, i));\n\n\t}\n\n\tsort(vec.begin(), vec.end());\n\n\tfor (int i = 0; i < n; i++) {\n\n\t\tg[vec[i].second] = i + 1;\n\n\t}\n\n\tfor (long long i = n - 1; i >= 0; i--) {\n\n\t\tadd(0, g[i], x[i].second);\n\n\t\tadd(1, g[i], 1);\n\n\t\tlong long L = 1, R = 320000, M, C = 0;\n\n\t\twhile (true) {\n\n\t\t\tM = (L + R) / 2;\n\n\t\t\tbool V1 = solve(M - 1, x[i].first);\n\n\t\t\tbool V2 = solve(M, x[i].first);\n\n\t\t\tif (V1 == true && V2 == false) {\n\n\t\t\t\tC = sum(1, M - 1); break;\n\n\t\t\t}\n\n\t\t\tif (V1 == true && V2 == true)L = M;\n\n\t\t\tif (V1 == false && V2 == false)R = M;\n\n\t\t\tif (M >= 310000 && V1 == true && V2 == true) {\n\n\t\t\t\tC = sum(1, 310000); break;\n\n\t\t\t}\n\n\t\t}\n\n\t\tmaxn = max(maxn, C);\n\n\t}\n\n\tcout << maxn << endl;\n\n\treturn 0;\n\n}\n```", "split": "validation", "task_id": "pie_cpp_validation_003649"}