chenjia's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 421 | 4811 | 735 |  46 |
- | ||
| AtCoder Beginner Contest 422 | 3251 | 616 |  123 |
+77 | ||
| AtCoder Beginner Contest 424 | 3949 | 711 |  210 |
+87 |