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| Name | Start time |
|---|---|
| Central European Olympiad in Informatics 2017 Day 2 (CEOI 2017 Day 2) | 2025-10-23 13:44:42 |
| Central European Olympiad in Informatics 2017 Day 1 (CEOI 2017 Day 1) | 2025-10-22 14:36:07 |
| Asia-Pacific Informatics Olympiad 2019 (APIO 2019) | 2025-10-16 20:28:16 |
| Central European Olympiad in Informatics 2019 Day 2 (CEOI 2019 Day 2) | 2025-10-07 13:55:07 |
| Central European Olympiad in Informatics 2019 Day 1 (CEOI 2019 Day 1) | 2025-10-06 13:50:32 |