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ZCDHJ's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Grand Contest 030 | 1019 | 1179 |  140 |
- | ||
| AtCoder Beginner Contest 120 | 437 | 1581 |  662 |
+522 | ||
| AtCoder Beginner Contest 136 | 1560 | 1079 |  752 |
+90 |