quyen tran
@mint123
Viet Nam, ha noi
Joined Apr 2016
World Rank: #32239 (0.8 points)
Institution: ha noi
Activity over the last year
Effectiveness
- Problems solved
- 24
- Solutions submitted
- 218
Viet Nam, ha noi
Joined Apr 2016
World Rank: #32239 (0.8 points)
Institution: ha noi