Update logbook: Repro: XRPO: Pushing the Limits of GRPO with Targeted Exploration and Exploitation

Update logbook: Repro: XRPO: Pushing the Limits of GRPO with Targeted Exploration and Exploitation

Update logbook: Repro: XRPO: Pushing the Limits of GRPO with Targeted Exploration and Exploitation

Update logbook: Repro: XRPO: Pushing the Limits of GRPO with Targeted Exploration and Exploitation

Update logbook: Repro: XRPO: Pushing the Limits of GRPO with Targeted Exploration and Exploitation

Update logbook: Repro: XRPO: Pushing the Limits of GRPO with Targeted Exploration and Exploitation

initial commit