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한국어
Profile of ruler
ruler
Solved problems
JOI13_watching
JOI13_synchronization
APIO14_sequence
BOI14_coprobber
BOI14_portals
JOI14_secret
COI17_ili
COI17_zagrade
JOI16_selling_rna
JOI16_skyscraper
JOI15_election_campaign
JOI15_sterilizing
BOI16_bosses
CEOI15_teams
CEOI15_pipes
APIO17_merchant
COCI17_plahte
CEOI17_palindromic
JOI18_stove
JOI18_art
JOI18_commuter_pass
CEOI11_bal
CEOI11_mat
CEOI11_hot
BOI19_kitchen
APIO19_strange_device
BOI17_railway
BOI17_catinatree
JOI20_building4
Submitted but unsolved problems
CEOI16_match
BOI13_pipes
BOI18_alternating