mengcheng jia
@zzafanti
China, Zhengzhou
Joined Jun 2023
World Rank: #5188 (6.8 points)
Institution: zzsz
Activity over the last year
Effectiveness
- Problems solved
- 27
- Solutions submitted
- 104
China, Zhengzhou
Joined Jun 2023
World Rank: #5188 (6.8 points)
Institution: zzsz