Zhang Zhaoyang
@olegekei
China, Beijing
Joined Jul 2022
World Rank: #9745 (3.6 points)
Institution: Tangshan No.1 middle school
Activity over the last year
Effectiveness
- Problems solved
- 40
- Solutions submitted
- 94
China, Beijing
Joined Jul 2022
World Rank: #9745 (3.6 points)
Institution: Tangshan No.1 middle school