takumi odaira
@daira
Japan, yokohama
Joined Apr 2008
World Rank: #79747 (0.1 points)
Institution: None
Activity over the last year
Effectiveness
- Problems solved
- 19
- Solutions submitted
- 111
Japan, yokohama
Joined Apr 2008
World Rank: #79747 (0.1 points)
Institution: None