「Codeforces 1063C」Dwarves, Hats and Extrasensory Abilities

02-21

「Codeforces 939E」Maximize!

02-17

「Codeforces 939D」Love Rescue

02-17

「Codeforces 242D」Dispute

02-16

「Codeforces 1106E」Lunar New Year and Red Envelopes

02-16

「Codeforces 1114E」Arithmetic Progression

02-15

「Codeforces 1104D」Game with modulo

02-13

「Codeforces 1107E」Vasya and Binary String

02-13

「Codeforces 1107G」Vasya and Maximum Profit

02-13

「Codeforces 1110D」Jongmah

02-08