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7 Kyu
Derek0919 
| Country/Region |  China |
|---|---|
| Birth Year | 2010 |
| TopCoder ID | derek0919 |
| Codeforces ID | xuyuanyuan |
| Affiliation | Jiangly Fan Club |
Contest Status
| Rating |  49
(Provisional) |
|---|---|
| Highest Rating | 64
|
| Rated Matches | 1 |
| Last Competed | 2023/03/18 |