sumi_'s Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Regular Contest 167 | 2542 | 153 |  8 |
- | ||
| Keysight Technologies Programming Contest（AtCoder Beginner Contest 454） | 7852 | 254 | 31 |
+23 | ||
| Ｓｋｙ Inc, Programming Contest 2026 (AtCoder Beginner Contest 455) | 6107 | 552 | 80 |
+49 | ||
| AtCoder Beginner Contest 456 | 6227 | 543 |  130 |
+50 | ||
| Polaris.AI Programming Contest 2026（AtCoder Beginner Contest 457） | 4234 | 877 |  228 |
+98 |