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prof_'s Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Regular Contest 205 (Div. 2) | 2520 | - | - | - | ||
| AtCoder Beginner Contest 422 | 5339 | 79 |  4 |
- | ||
| AtCoder Beginner Contest 450 | 8224 | 345 | 29 |
+25 | ||
| AtCoder Regular Contest++ 216 | 444 | - | - | - | ||
| AtCoder Beginner Contest 453 | 7759 | 383 | 64 |
+35 | ||
| Keysight Technologies Programming Contest（AtCoder Beginner Contest 454） | 6558 | 447 |  103 |
+39 | ||
| Ｓｋｙ Inc, Programming Contest 2026 (AtCoder Beginner Contest 455) | 9271 | 135 | 106 |
+3 | ||
| AtCoder Beginner Contest 456 | 8922 | 158 | 112 |
+6 | ||
| Polaris.AI Programming Contest 2026（AtCoder Beginner Contest 457） | 8442 | - | - | - | ||
| AtCoder Beginner Contest 458 | 7982 | 361 | 137 |
+25 | ||
| Tokio Marine & Nichido Fire Insurance Programming Contest 2026 (AtCoder Beginner Contest 459) | 7957 | 334 | 157 |
+20 |