davidguandev's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 124 | 259 | 1600 |  400 |
- | ||
| Tenka1 Programmer Beginner Contest 2019 | 146 | 1600 |  855 |
+455 | ||
| AtCoder Beginner Contest 125 | 1638 | 974 | 861 |
+6 |