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| Name | Start time |
|---|---|
| (China) National Olympiad in Informatics 2015 Day 2 | 2025-06-11 17:47:46 |
| Korea IOI Team Selection Test (KOI TST) 2024, 2nd Selection Contest | 2025-06-04 09:47:38 |
| Korea IOI Team Selection Test (KOI TST) 2024, 1st Selection Contest | 2025-06-01 18:13:13 |
| International Olympiad in Informatics 2023 Day 1 | 2025-05-28 14:52:47 |
| International Olympiad in Informatics 2023 Day 2 | 2025-05-25 16:20:07 |