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Profile of bachhoangxuan
bachhoangxuan
Solved problems
IOI11_race
IOI13_cave
APIO14_palindrome
APIO14_sequence
APIO14_beads
JOI14_factories
JOI14_fortune_telling2
JOI14_secret
CEOI14_carnival
APIO15_sculpture
APIO16_boat
APIO16_gap
CEOI16_icc
JOI16_skyscraper
BOI13_numbers
BOI13_pipes
BOI13_brunhilda
COCI16_mag
COCI16_vjestica
COCI17_bridz
COCI17_kartomat
COCI17_kas
COCI17_rima
POI11_met
JOI18_stove
JOI18_art
JOI18_dango_maker
JOI18_commuter_pass
JOI18_snake_escaping
JOI18_bitaro
JOI18_library
COI18_paprike
COI18_zagonetka
APIO18_duathlon
CEOI11_mat
BOI18_dna
BOI18_paths
JOI18_xylophone
IOI18_combo
APIO19_strange_device
APIO19_street_lamps
BOI17_politicaldevelopment
BOI17_railway
BOI17_toll
BOI17_catinatree
BOI17_plusminus
IOI19_shoes
IOI19_rect
JOI20_ho_t3
info1cup20_tabletennis
info1cup20_trampoline
info1cup20_football
info1cup20_cheerleaders
NOI19_feast
JOI20_chameleon
JOI20_dango2
IOI20_supertrees
IOI20_tickets
IOI20_biscuits
IOI20_stations
JOI21_event2
JOI21_financial
IOI21_dna
COCI22_autici
COCI22_autobus
COCI22_izbori
COCI22_parkovi
COCI22_sarenlist
JOI22_ho_t1
JOI22_kyoto
APIO22_perm
IOI22_fish
JOI23_currencies
JOI23_passport
JOI23_council
JOI23_chorus
JOI23_travel
APIO23_cyberland
APIO23_sequence
Submitted but unsolved problems
JOI17_park
JOI21_aerobatics
CCO21_day1problem2
APIO23_abc