c yz
@abcyz
China, Changsha
Joined Feb 2021
World Rank: #10602 (3.3 points)
Institution: cj
Activity over the last year
Effectiveness
- Problems solved
- 26
- Solutions submitted
- 37
China, Changsha
Joined Feb 2021
World Rank: #10602 (3.3 points)
Institution: cj