a4r's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 451 | 8302 | 308 |  15 |
- | ||
| AtCoder Beginner Contest 452 | 7390 | 427 | 57 |
+42 | ||
| AtCoder Beginner Contest 453 | 9551 | 176 | 73 |
+16 | ||
| Keysight Technologies Programming Contest（AtCoder Beginner Contest 454） | 8163 | 214 | 91 |
+18 | ||
| Ｓｋｙ Inc, Programming Contest 2026 (AtCoder Beginner Contest 455) | 10243 | - | - | - | ||
| AtCoder Beginner Contest 456 | 8307 | 225 |  107 |
+16 | ||
| Polaris.AI Programming Contest 2026（AtCoder Beginner Contest 457） | 6377 | 488 | 145 |
+38 |