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C2H2O4's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Regular Contest 120 | 1756 | 95 |  5 |
- | ||
| AtCoder Beginner Contest 203（Sponsored by Panasonic） | 5519 | 303 | 29 |
+24 |