Christopher Samuel
@p2201617
Indonesia, Surabaya
Joined Feb 2016
World Rank: #6135 (5.8 points)
Institution: SMA St. Louis I
Activity over the last year
Effectiveness
- Problems solved
- 8
- Solutions submitted
- 115
Indonesia, Surabaya
Joined Feb 2016
World Rank: #6135 (5.8 points)
Institution: SMA St. Louis I