@sadness
China
Joined Jul 2009
World Rank: #780 (33.2 points)
Institution: middle school attached to Anhui Normal University
Activity over the last year
Effectiveness
- Problems solved
- 167
- Solutions submitted
- 797
China
Joined Jul 2009
World Rank: #780 (33.2 points)
Institution: middle school attached to Anhui Normal University