Humberto Barbosa
@humberto
Brazil
Joined Jun 2009
World Rank: #46525 (0.4 points)
Institution: Universidade Federal do Rio de Janeiro (UFRJ)
Activity over the last year
Effectiveness
- Problems solved
- 26
- Solutions submitted
- 48
Brazil
Joined Jun 2009
World Rank: #46525 (0.4 points)
Institution: Universidade Federal do Rio de Janeiro (UFRJ)