zibizhong's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 430 | 2373 | 1071 |  107 |
- | ||
| AtCoder Beginner Contest 438 | 4025 | - | - | - | ||
| AtCoder Beginner Contest 439 | 3426 | 941 |  281 |
+174 |