余 杲
@yugao
China, Shao Xing
Joined Feb 2018
World Rank: #13547 (2.5 points)
Institution: School
Activity over the last year
Effectiveness
- Problems solved
- 33
- Solutions submitted
- 56
China, Shao Xing
Joined Feb 2018
World Rank: #13547 (2.5 points)
Institution: School