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Profile of ergagan
ergagan
Solved problems
POI11_met
CEOI17_sure
IZhO18_plan
IZhO18_nicegift
IZhO18_sequence
IZhO18_treearray
JOI18_stove
info1cup18_maxcomp
JOI19_ho_t4
BOI19_nautilus
BOI19_valley
IZhO19_segments
Submitted but unsolved problems
IZhO18_chessboard
info1cup17_xorsum
IZhO19_sortbooks