Simon Armstrong
@simes
United Kingdom, n/a
Joined Nov 2006
World Rank: #13 (488.5 points)
Institution: Retired
Activity over the last year
Effectiveness
- Problems solved
- 1385
- Solutions submitted
- 9819
United Kingdom, n/a
Joined Nov 2006
World Rank: #13 (488.5 points)
Institution: Retired