richardshen's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| Keysight Technologies Programming Contest（AtCoder Beginner Contest 454） | 4449 | 810 |  56 |
- | ||
| AtCoder Beginner Contest 456 | 9550 | - | - | - | ||
| AtCoder Beginner Contest 461 | 2909 | 1214 |  307 |
+251 |