4 Kyu
OIerZhang 
| Country/Region |  China |
|---|---|
| Birth Year | 2011 |
| Codeforces ID | OIerZhang |
| Affiliation | Capital Normal University High School |
Contest Status
| Rank | 10526th |
|---|---|
| Rating |  1201
|
| Highest Rating | 1278
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4 Kyu
(+122 to promote)
|
| Rated Matches | 28 |
| Last Competed | 2026/05/30 |