kohahahara's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 450 | 4271 | 934 |  76 |
- | ||
| AtCoder Beginner Contest 451 | 2198 | 1299 |  395 |
+319 | ||
| AtCoder Beginner Contest 452 | 2034 | 1348 |  676 |
+281 | ||
| AtCoder Beginner Contest 453 | 2426 | 1257 |  805 |
+129 | ||
| Keysight Technologies Programming Contest（AtCoder Beginner Contest 454） | 3903 | 908 | 814 |
+9 | ||
| AtCoder Beginner Contest 466 | 2661 | 1254 | 893 |
+79 | ||
| JPRS Programming Contest 2026#2 (AtCoder Beginner Contest 470) | 1061 | 1626 |  1037 |
+144 |