duc ta
@kakashi116
Viet Nam, thai binh
Joined Dec 2016
World Rank: #117319 (0 points)
Institution: hight school
Activity over the last year
Effectiveness
- Problems solved
- 3
- Solutions submitted
- 111
Viet Nam, thai binh
Joined Dec 2016
World Rank: #117319 (0 points)
Institution: hight school