Richard Lau
@richardlau08
China, Hengshui
Joined Oct 2021
World Rank: #8411 (4.2 points)
Institution: Hengshui High School Experimental Campus
Activity over the last year
Effectiveness
- Problems solved
- 44
- Solutions submitted
- 169
China, Hengshui
Joined Oct 2021
World Rank: #8411 (4.2 points)
Institution: Hengshui High School Experimental Campus