Problemset - Codeforces

→ Pay attention

Contest is running
2023 Post World Finals Online ICPC Challenge powered by Huawei
2 weeks
Register now »

Before contest
Kotlin Heroes: Practice 10
10:56:25
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
729F	Financiers Game dp	2500	x934
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory	2400	x947
659G	Fence Divercity combinatorics, dp, number theory	2300	x947
1784D	Wooden Spoon combinatorics, dp	2400	x951
1038E	Maximum Matching bitmasks, brute force, dfs and similar, dp, graphs	2400	x952
1132G	Greedy Subsequences data structures, dp, trees	2400	x958
1194F	Crossword Expert combinatorics, dp, number theory, probabilities, two pointers	2400	x965
629E	Famil Door and Roads combinatorics, data structures, dfs and similar, dp, probabilities, trees	2300	x969
1093F	Vasya and Array dp	2400	x970
317D	Game with Powers dp, games	2300	x972
1625E1	Cats on the Upgrade (easy version) brute force, data structures, dfs and similar, divide and conquer, dp, graphs, trees	2500	x974
954F	Runner's Problem dp, matrices, sortings	2100	x975
756D	Bacterial Melee brute force, combinatorics, dp, string suffix structures	2400	x975
1332F	Independent Set dfs and similar, dp, trees	2500	x976
886E	Maximum Element combinatorics, dp, math	2400	x976
1354F	Summoning Minions constructive algorithms, dp, flows, graph matchings, greedy, sortings	2500	x977
77C	Beavermuncher-0xFF dfs and similar, dp, dsu, greedy, trees	2100	x977
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x981
1930E	2..3...4.... Wonderful! Wonderful! combinatorics, dp, math	2400	x982
28C	Bath Queue combinatorics, dp, probabilities	2200	x982
575F	Bulbo dp, greedy	2100	x983
1107G	Vasya and Maximum Profit binary search, constructive algorithms, data structures, dp, dsu	2400	x988
835F	Roads in the Kingdom dfs and similar, dp, graphs, trees	2500	x997
489E	Hiking binary search, dp	2300	x998
1716F	Bags with Balls combinatorics, dp, math, number theory	2500	x1000
1794E	Labeling the Tree with Distances data structures, dp, greedy, hashing, implementation, trees	2400	x1004
1004E	Sonya and Ice Cream binary search, data structures, dp, greedy, shortest paths, trees	2400	x1010
744C	Hongcow Buys a Deck of Cards bitmasks, brute force, dp	2400	x1010
1658E	Gojou and Matrix Game data structures, dp, games, hashing, implementation, math, number theory, sortings	2500	x1019
780F	Axel and Marston in Bitland bitmasks, dp, graphs, matrices	2400	x1019
238C	World Eater Brothers dfs and similar, dp, greedy, trees	2100	x1019
1716E	Swap and Maximum Block bitmasks, data structures, dfs and similar, divide and conquer, dp	2500	x1022
31E	TV Game dp	2400	x1022
1172C1	Nauuo and Pictures (easy version) dp, probabilities	2300	x1025
900E	Maximum Questions data structures, dp, strings	2100	x1028
1015F	Bracket Substring dp, strings	2300	x1045
641D	Little Artem and Random Variable dp, implementation, math, probabilities	2400	x1047
526E	Transmitting Levels dp, implementation	2400	x1054
557E	Ann and Half-Palindrome data structures, dp, graphs, string suffix structures, strings, trees	2300	x1055
1701E	Text Editor brute force, dp, greedy, strings	2500	x1058
360C	Levko and Strings combinatorics, dp	2500	x1060
498D	Traffic Jams in the Land data structures, dp, number theory	2400	x1061
1874B	Jellyfish and Math bitmasks, brute force, dfs and similar, dp, graphs, shortest paths	2400	x1064
403D	Beautiful Pairs of Numbers combinatorics, dp	2300	x1064
1398F	Controversial Rounds binary search, data structures, dp, greedy, two pointers	2500	x1067
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1069
1334F	Strange Function binary search, data structures, dp, greedy	2500	x1081
1146F	Leaf Partition dp, trees	2500	x1088
369D	Valera and Fools dfs and similar, dp, graphs, shortest paths	2200	x1088
1003F	Abbreviation dp, hashing, strings	2200	x1096
1679E	Typical Party in Dorm bitmasks, combinatorics, dp, strings	2400	x1098
771D	Bear and Company dp	2500	x1103
1666F	Fancy Stack combinatorics, dp, implementation	2200	x1105
1307E	Cow and Treats binary search, combinatorics, dp, greedy, implementation, math	2500	x1106
377C	Captains Mode bitmasks, dp, games	2200	x1106
1245E	Hyakugoku and Ladders dp, probabilities, shortest paths	2300	x1108
1089A	Alice the Fan dp	2200	x1112
1921G	Mischievous Shooter brute force, data structures, divide and conquer, dp, implementation	2200	x1116
1131E	String Multiplication dp, greedy, strings	2300	x1119
1766E	Decomposition binary search, brute force, data structures, divide and conquer, dp, two pointers	2300	x1125
1065F	Up and Down the Tree dfs and similar, dp, trees	2500	x1133
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1137
590D	Top Secret Task dp	2300	x1141
1151F	Sonya and Informatics combinatorics, dp, matrices, probabilities	2300	x1143
498B	Name That Tune dp, probabilities, two pointers	2400	x1147
1585F	Non-equal Neighbours combinatorics, dp, math	2400	x1149
364B	Free Market dp, greedy	2200	x1150
1313D	Happy New Year bitmasks, dp, implementation	2500	x1151
1137C	Museums Tour dp, graphs, implementation	2500	x1154
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1156
1922F	Replace on Segment dp, graph matchings	2500	x1161
1556F	Sports Betting bitmasks, combinatorics, dp, graphs, math, probabilities	2500	x1167
1739E	Cleaning Robot bitmasks, dp	2400	x1168
1764E	Doremy's Number Line dp, greedy, sortings	2400	x1177
1866D	Digital Wallet dp, greedy	2300	x1180
906C	Party bitmasks, brute force, dp, graphs	2400	x1180
1542E1	Abnormal Permutation Pairs (easy version) combinatorics, dp, fft, math	2400	x1182
772C	Vulnerable Kerbals constructive algorithms, dp, graphs, math, number theory	2300	x1183
1677D	Tokitsukaze and Permutations dp, math	2500	x1191
1823E	Removing Graph brute force, dp, games, graphs, math	2500	x1195
1044C	Optimal Polygon Perimeter dp, geometry	2100	x1203
1485E	Move and Swap dfs and similar, dp, greedy, trees	2500	x1213
1779F	Xorcerer's Stones bitmasks, constructive algorithms, dp, trees	2500	x1218
1163D	Mysterious Code dp, strings	2100	x1218
645E	Intellectual Inquiry dp, greedy, strings	2200	x1218
1914G2	Light Bulbs (Hard Version) combinatorics, data structures, dfs and similar, dp, graphs, hashing	2300	x1219
696D	Legen... data structures, dp, matrices, strings	2500	x1222
283C	Coin Troubles dp	2100	x1230
1736C2	Good Subarrays (Hard Version) binary search, data structures, dp, two pointers	2400	x1234
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1240
1776B	Vittorio Plays with LEGO Bricks dp, geometry	2200	x1243
1499F	Diameter Cuts combinatorics, dfs and similar, dp, trees	2400	x1244
691F	Couple Cover brute force, dp, number theory	2200	x1245
1814E	Chain Chips data structures, dp, matrices	2300	x1246
765E	Tree Folding dfs and similar, dp, greedy, implementation, trees	2200	x1246
1808E1	Minibuses on Venus (easy version) combinatorics, divide and conquer, dp	2200	x1251
1824C	LuoTianyi and XOR-Tree data structures, dfs and similar, dp, dsu, greedy, trees	2500	x1252
804D	Expected diameter of a tree binary search, brute force, dfs and similar, dp, sortings, trees	2500	x1257
1845E	Boxes and Balls dp, implementation, math	2500	x1260
1101F	Trucks and Cities binary search, dp	2400	x1260