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Profile of happy_node
happy_node
Solved problems
balkan11_timeismoney
JOI16_skyscraper
JOI19_remittance
JOI20_ho_t1
JOI20_ho_t2
JOI20_ho_t3
JOI20_ho_t4
JOI20_ho_t5
JOI20_furniture
JOI21_ho_t1
JOI21_ho_t2
JOI21_ho_t3
JOI21_ho_t4
JOI21_financial
JOI22_ho_t4
JOI22_misspelling
JOI23_currencies
Submitted but unsolved problems
JOI17_amusement_park
JOI22_jail
JOI22_kyoto
JOI22_seesaw