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Profile of mrwang
mrwang
Solved problems
IOI11_crocodile
JOI14_pinball
APIO15_skyscraper
JOI15_election_campaign
JOI16_matryoshka
COCI17_garaza
IOI09_regions
CEOI11_tea
IOI18_werewolf
IOI19_shoes
JOI20_harvest
JOI22_copypaste3