Hongrui Lai
@fly_lai
China, ShenZhen
Joined Dec 2022
World Rank: #8468 (4.2 points)
Institution: Shenzhen middle school
Activity over the last year
Effectiveness
- Problems solved
- 21
- Solutions submitted
- 49
China, ShenZhen
Joined Dec 2022
World Rank: #8468 (4.2 points)
Institution: Shenzhen middle school