harbin's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 159 | 3322 | 840 |  60 |
- | ||
| AtCoder Beginner Contest 160 | 6617 | 354 |  105 |
+45 | ||
| AtCoder Beginner Contest 187 | 3898 | 616 | 174 |
+69 | ||
| AtCoder Beginner Contest 190 | 7158 | 191 | 171 |
-3 | ||
| AtCoder Beginner Contest 215 | 3547 | 743 |  247 |
+76 | ||
| Sciseed Programming Contest 2021（AtCoder Beginner Contest 219） | 2134 | 1009 |  379 |
+132 |