czhfather's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 451 | 197 | 2199 |  999 |
- | ||
| AtCoder Grand Contest 077 | 122 | - | - | - | ||
| AtCoder Beginner Contest 452 | 1002 | 1641 |  1193 |
+194 | ||
| AtCoder Beginner Contest 453 | 751 | 1740 |  1324 |
+131 | ||
| Keysight Technologies Programming Contest（AtCoder Beginner Contest 454） | 295 | 2054 |  1499 |
+175 | ||
| Ｓｋｙ Inc, Programming Contest 2026 (AtCoder Beginner Contest 455) | 363 | 1994 |  1596 |
+97 |