Hirotaka Yoneda

@square1001

Japan, Tokyo

Joined Jul 2016

World Rank: #2560 (13.5 points)

Institution: Kaisei Senior High School

I am square1001. IOI 2018 Silver (Unofficial) Medalist. 10th grader currently.

Activity over the last year

Effectiveness

 Problems solved
93
 Solutions submitted
698

Problems