1337xyz1337xyz/codeforces-editorial-elo-512-2026-04-28

这是一个包含512个示例的子集，来源于`open-r1/codeforces`数据集，主要用于Plan-CRL Codeforces反馈实验。数据集填充了`reference_solution`字段，该字段来源于源数据集的`editorial`字段，需注意这不是规范的参考代码，而是自然语言的编辑/解释。数据集经过严格的筛选和平衡处理，包括评分存在、完整的官方测试、仅stdio任务等条件，并且按照不同的ELO等级进行了平衡分配。

A 512-example subset sampled from `open-r1/codeforces` (`verifiable`, `train`) for Plan-CRL Codeforces feedback experiments that need a non-empty trusted reference field. Important: `open-r1/codeforces` does not expose code reference solutions. This subset fills `reference_solution` from the source datasets `editorial` field. Treat it as a natural-language editorial/rationale, not canonical reference code. Selection seed: `20260428`. Filtering: rating present, complete official tests, stdio-only tasks, no generated checker, official tests present, non-empty `editorial`, eval `tests` capped to 16 cases. Bucket balance: `elo_0800_0900`: 128, `elo_1000_1500`: 128, `elo_1600_2200`: 128, `elo_2300_3500`: 128.