Ruihan Guo

@guoruihan

China, Chengdu

Joined Jan 2016

World Rank: #34809 (0.7 points)

Activity over the last year

Effectiveness

 Problems solved
9
 Solutions submitted
35

Problems

List of solved classical problems:

CIRU QTREE
GSS4 SUBLEX
HACKRNDM
KAOS
LCS2
NSUBSTR
PHRASES