codein's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| Ｓｋｙ Inc, Programming Contest 2026 (AtCoder Beginner Contest 455) | 1863 | 1342 |  210 |
- | ||
| Polaris.AI Programming Contest 2026（AtCoder Beginner Contest 457） | 3185 | 1068 |  460 |
+250 |