hanyan shi
@gingkgo
China, shaoxing
Joined Jul 2011
World Rank: #22 (371.4 points)
Institution: Shaoxing No.1 High School
Activity over the last year
Effectiveness
- Problems solved
- 885
- Solutions submitted
- 2462
China, shaoxing
Joined Jul 2011
World Rank: #22 (371.4 points)
Institution: Shaoxing No.1 High School