black num
@blacknum
Viet Nam, DH
Joined Dec 2012
World Rank: #13554 (2.5 points)
Institution: NA
Activity over the last year
Effectiveness
- Problems solved
- 24
- Solutions submitted
- 158
Viet Nam, DH
Joined Dec 2012
World Rank: #13554 (2.5 points)
Institution: NA