ydchen's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 177 | 3685 | 834 |  59 |
- | ||
| AtCoder Beginner Contest 179 | 828 | 1598 |  552 |
+493 | ||
| AtCoder Beginner Contest 206（Sponsored by Panasonic） | 1669 | 1217 |  723 |
+171 |