fill optimism Hyunuk host conference great new year beThe conference n lecture Hyunuk candidate venue b for n lecture speaker specify time interval sa_i ea_i sa_i le ea_i sb_i eb_i sb_i le eb_i if conference situate venue lecture hold sa_i ea_i conference situate venue b lecture hold sb_i eb_i Hyunuk choose venue lecture hold venueTwo lecture say overlap share point time common Formally lecture hold interval x y overlaps lecture hold interval u v maxx u le miny vWe participant attend subset s lecture lecture s pairwise overlap ie lecture overlap note possibility attend depend Hyunuk select venue venue b hold conferenceA subset lecture s say venuesensitive venue participant attend s venue participant attend sA venuesensitive set problematic participant interested attend lecture s participant sure lecture time overlap Hyunuk happy venuesensitive set Determine Hyunuk happy