o_s_a's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 198 | 6399 | 167 |  8 |
- | ||
| Japanese Student Championship 2021 | 3369 | 152 | 25 |
+17 | ||
| AtCoder Beginner Contest 199（Sponsored by Panasonic） | 7787 | 71 | 31 |
+6 | ||
| ZONe Energy Programming Contest | 5358 | 215 | 50 |
+19 | ||
| KYOCERA Programming Contest 2021（AtCoder Beginner Contest 200） | 6618 | 185 | 65 |
+15 |