laozhang's Competition History
| Date | Contest | Duration | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 468 | 01:40 | 2525 | 1295 |  187 |
- | ||
| AtCoder Beginner Contest 469 | 01:40 | 5168 | 815 |  329 |
+142 |