lei hhh
@rjq
China, 北京
Joined Oct 2018
World Rank: #12315 (2.8 points)
Institution: fuck you
Activity over the last year
Effectiveness
- Problems solved
- 24
- Solutions submitted
- 61
China, 北京
Joined Oct 2018
World Rank: #12315 (2.8 points)
Institution: fuck you