whit harm
@dedaka_awa
China, Hangzhou City
Joined Apr 2022
World Rank: #17582 (1.8 points)
Institution: school
Activity over the last year
Effectiveness
- Problems solved
- 27
- Solutions submitted
- 107
China, Hangzhou City
Joined Apr 2022
World Rank: #17582 (1.8 points)
Institution: school