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@ngockhain
Viet Nam, Ho Chi Minh city
Joined Nov 2017
World Rank: #32417 (0.8 points)
Activity over the last year
Effectiveness
- Problems solved
- 21
- Solutions submitted
- 99
Viet Nam, Ho Chi Minh city
Joined Nov 2017
World Rank: #32417 (0.8 points)