@thai9cdb
Viet Nam
Joined Jul 2011
World Rank: #65219 (0.2 points)
Institution: THPT Chuyên Hà Tĩnh
Activity over the last year
Effectiveness
- Problems solved
- 9
- Solutions submitted
- 50
Viet Nam
Joined Jul 2011
World Rank: #65219 (0.2 points)
Institution: THPT Chuyên Hà Tĩnh