A H
@efekcik
Poland, Warszawa
Joined May 2012
World Rank: #5733 (6.2 points)
Institution: none
Activity over the last year
Effectiveness
- Problems solved
- 24
- Solutions submitted
- 57
Poland, Warszawa
Joined May 2012
World Rank: #5733 (6.2 points)
Institution: none