OpenR1 Codeforces CoTs (solutions)

Author: hf-mirror · License: cc-by-4.0 · Format: parquet

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Codeforces problems with R1-style CoT solutions (competitive programming, CC-BY-4.0).

Tags: coding · competitive-programming · reasoning · deepseek-r1 · huggingface

Description

OpenR1's Codeforces corpus, solutions split: competitive-programming problems with R1-style chain-of-thought solutions (plus checker/interactor files in sibling splits for execution verification) — coding and reasoning meet. CC-BY-4.0. Pins the 10-shard solutions group (~1.7 GB).

Download

Direct download: https://huggingface.co/datasets/open-r1/codeforces-cots/resolve/main/solutions/train-00000-of-00010.parquet

Or via the API: curl -L -o file "https://huggingface.co/datasets/open-r1/codeforces-cots/resolve/main/solutions/train-00000-of-00010.parquet"

Files

solutions/train-00000-of-00010.parquet (173,613,880)
solutions/train-00001-of-00010.parquet (192,375,022)
solutions/train-00002-of-00010.parquet (182,819,231)
solutions/train-00003-of-00010.parquet (183,457,043)
solutions/train-00004-of-00010.parquet (181,782,276)
solutions/train-00005-of-00010.parquet (208,241,208)
solutions/train-00006-of-00010.parquet (188,629,441)
solutions/train-00007-of-00010.parquet (194,734,886)
solutions/train-00008-of-00010.parquet (187,886,704)
solutions/train-00009-of-00010.parquet (193,509,488)

Added 2026-09-27. Platform: Distillio — the open source training data collective.