BlackHoles's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 418 | 10599 | 44 |  2 |
- | ||
| AtCoder Beginner Contest 420 | 9347 | - | - | - | ||
| AtCoder Beginner Contest 421 | 6948 | 454 | 30 |
+28 |