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已解決的問題：共 28 道題
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| Name | Start time |
|---|---|
| International Olympiad in Informatics 2015 Day 1 | 2026-02-04 16:22:03 |
| International Olympiad in Informatics 2014 Day 2 | 2026-01-21 18:00:52 |
| JOI Open Contest 2017 | 2025-10-11 00:57:46 |
| USACO 2019 January Contest (Platinum) | 2025-09-26 23:26:59 |
| USACO 2018 December Contest (Platinum) | 2025-09-23 17:07:33 |
| Korea IOI Team Selection Test (KOI TST) 2024, 2nd Selection Contest | 2025-05-11 15:55:11 |