chendong_'s Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| Denso Create Programming Contest 2026（AtCoder Beginner Contest 443） | 6269 | 489 |  25 |
- | ||
| AtCoder Beginner Contest 444 | 7891 | 386 | 68 |
+43 | ||
| AtCoder Beginner Contest 452 | 9538 | 153 | 79 |
+11 | ||
| Keysight Technologies Programming Contest（AtCoder Beginner Contest 454） | 7993 | 235 | 99 |
+20 | ||
| Tokio Marine & Nichido Fire Insurance Programming Contest 2026 (AtCoder Beginner Contest 459) | 8408 | - | - | - | ||
| AtCoder Beginner Contest 460 | 8060 | 403 |  132 |
+33 |