Osan's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 115 | 1409 | 486 |  25 |
- | ||
| AtCoder Grand Contest 029 | 1617 | 663 | 98 |
+73 | ||
| AtCoder Grand Contest 030 | 1492 | 650 |  172 |
+74 | ||
| AtCoder Beginner Contest 117 | 2605 | 49 | 134 |
-38 |