ch1ld's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Regular Contest 202 (Div. 1) | 527 | - | - | - | ||
| AtCoder Beginner Contest 418 | 3604 | 908 |  71 |
- | ||
| AtCoder Beginner Contest 419 | 4080 | 848 |  204 |
+133 | ||
| AtCoder Beginner Contest 420 | 5299 | 616 | 270 |
+66 |