3 Dan
ast123 
| Country/Region |  China |
|---|---|
| Birth Year | 2007 |
| TopCoder ID | zhaohaikun |
| Codeforces ID | zhaohaikun |
| Affiliation | Changzhou Senior High School of Jiangsu Province |
Contest Status
| Rank | 347th (Top 0.27%) |
|---|---|
| Rating |  2401
|
| Highest Rating |  2524
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3 Dan
(+76 to promote)
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| Rated Matches | 52 |
| Last Competed | 2025/06/22 |