Ratatan's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Heuristic Contest 025 | 879 | - | - | - | ||
| AtCoder Heuristic Contest 063 | 174 | 1848 |  998 |
- | ||
| AtCoder Heuristic Contest 065 | 282 | 1518 |  1123 |
+134 | ||
| ALGO ARTIS Programming Contest 2026 September（AtCoder Heuristic Contest 072） | 349 | 1494 |  1262 |
+177 |