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| Name | Start time |
|---|---|
| IOI 2021 中国国家集训队作业 | 2025-08-06 21:33:35 |
| (China) National Olympiad in Informatics 2025 Day 2 | 2025-08-03 08:00:01 |
| (China) National Olympiad in Informatics 2025 Day 1 | 2025-07-27 08:00:20 |