QOJ.ac
QOJ
User profile
BallBreaker
Rating
1800
Contribution
0
Usergroup
Default
Motto
Rating changes
Accepted problems：10 problems
11402785425267587120915591569237924112771
Tried problems：18 problems
11382672267327862787425165276755675667577119915791619162916392381277012772
Authored problems：0 problem
NoneVirtual Participations：8 contests
| Name | Start time |
|---|---|
| IOI 2025 Training Series #1 | 2025-07-24 21:37:37 |
| International Olympiad in Informatics 2015 Day 1 | 2025-07-09 12:04:32 |
| Asia-Pacific Informatics Olympiad 2022 (APIO 2022) | 2025-05-06 15:20:13 |
| Asia-Pacific Informatics Olympiad 2023 (APIO 2023) | 2025-04-24 20:07:36 |
| (China) National Olympiad in Informatics 2023 Day 2 | 2025-03-25 00:06:32 |
| (China) National Olympiad in Informatics 2023 Day 1 | 2025-03-24 17:05:13 |
| Central European Olympiad in Informatics 2024 Day 1 (CEOI 2024 Day 1) | 2025-03-23 18:27:56 |
| (China) National Olympiad in Informatics 2024 Day 1 | 2025-03-15 15:34:42 |