kostka's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Regular Contest 081 | 144 | 2253 |  1053 |
- | ||
| AtCoder Beginner Contest 105 | 53 | - | - | - | ||
| AtCoder Beginner Contest 123 | 377 | 1512 |  1177 |
+124 | ||
| AtCoder Beginner Contest 131 | 143 | 2114 |  1451 |
+274 | ||
| AtCoder Beginner Contest 139 | 4 | 2400 |  1702 |
+251 |