changqiyu2's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 440 | 2004 | 1306 |  192 |
- | ||
| AtCoder Beginner Contest 441 (Promotion of Engineer Guild Fes) | 2425 | 1234 |  523 |
+331 |