Problemset - Codeforces

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Problems

#	Name
1914G2	Light Bulbs (Hard Version) combinatorics, data structures, dfs and similar, dp, graphs, hashing	2300	x1212
258D	Little Elephant and Broken Sorting dp, math, probabilities	2600	x1210
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1209
1044C	Optimal Polygon Perimeter dp, geometry	2100	x1202
650D	Zip-line binary search, data structures, dp, hashing	2600	x1190
1823E	Removing Graph brute force, dp, games, graphs, math	2500	x1189
1677D	Tokitsukaze and Permutations dp, math	2500	x1189
772C	Vulnerable Kerbals constructive algorithms, dp, graphs, math, number theory	2300	x1183
1542E1	Abnormal Permutation Pairs (easy version) combinatorics, dp, fft, math	2400	x1182
1866D	Digital Wallet dp, greedy	2300	x1180
906C	Party bitmasks, brute force, dp, graphs	2400	x1179
1554E	You dfs and similar, dp, math, number theory	2600	x1178
1764E	Doremy's Number Line dp, greedy, sortings	2400	x1176
95B	Lucky Numbers dp, greedy	1800	x1175
1264D1	Beautiful Bracket Sequence (easy version) combinatorics, dp, probabilities	2600	x1171
1739E	Cleaning Robot bitmasks, dp	2400	x1168
1556F	Sports Betting bitmasks, combinatorics, dp, graphs, math, probabilities	2500	x1165
1437F	Emotional Fishermen combinatorics, dp, math, two pointers	2600	x1162
1922F	Replace on Segment dp, graph matchings	2500	x1158
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1155
1137C	Museums Tour dp, graphs, implementation	2500	x1154
1585F	Non-equal Neighbours combinatorics, dp, math	2400	x1149
364B	Free Market dp, greedy	2200	x1149
498B	Name That Tune dp, probabilities, two pointers	2400	x1147
1151F	Sonya and Informatics combinatorics, dp, matrices, probabilities	2300	x1143
590D	Top Secret Task dp	2300	x1141
1827C	Palindrome Partition binary search, brute force, data structures, dp, hashing, strings	2600	x1137
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1136
958C2	Encryption (medium) dp	2000	x1134
1065F	Up and Down the Tree dfs and similar, dp, trees	2500	x1132
1313D	Happy New Year bitmasks, dp, implementation	2500	x1131
1766E	Decomposition binary search, brute force, data structures, divide and conquer, dp, two pointers	2300	x1125
995F	Cowmpany Cowmpensation combinatorics, dp, math, trees	2700	x1122
1131E	String Multiplication dp, greedy, strings	2300	x1119
1921G	Mischievous Shooter brute force, data structures, divide and conquer, dp, implementation	2200	x1113
1089A	Alice the Fan dp	2200	x1112
671D	Roads in Yusland data structures, dp, greedy	2900	x1109
1245E	Hyakugoku and Ladders dp, probabilities, shortest paths	2300	x1107
377C	Captains Mode bitmasks, dp, games	2200	x1105
1666F	Fancy Stack combinatorics, dp, implementation	2200	x1104
771D	Bear and Company dp	2500	x1103
1949C	Annual Ants' Gathering dfs and similar, dp, greedy, trees	1900	x1098
1003F	Abbreviation dp, hashing, strings	2200	x1095
1679E	Typical Party in Dorm bitmasks, combinatorics, dp, strings	2400	x1093
1733E	Conveyor constructive algorithms, dp, math	2700	x1089
1146F	Leaf Partition dp, trees	2500	x1088
369D	Valera and Fools dfs and similar, dp, graphs, shortest paths	2200	x1087
1307E	Cow and Treats binary search, combinatorics, dp, greedy, implementation, math	2500	x1085
1334F	Strange Function binary search, data structures, dp, greedy	2500	x1081
797F	Mice and Holes data structures, dp, greedy, sortings	2600	x1081
1699E	Three Days Grace data structures, dp, greedy, math, number theory, two pointers	2600	x1079
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1067
1398F	Controversial Rounds binary search, data structures, dp, greedy, two pointers	2500	x1067
367E	Sereja and Intervals combinatorics, dp	2700	x1066
403D	Beautiful Pairs of Numbers combinatorics, dp	2300	x1063
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	x1060
360C	Levko and Strings combinatorics, dp	2500	x1057
1701E	Text Editor brute force, dp, greedy, strings	2500	x1056
557E	Ann and Half-Palindrome data structures, dp, graphs, string suffix structures, strings, trees	2300	x1053
526E	Transmitting Levels dp, implementation	2400	x1053
641D	Little Artem and Random Variable dp, implementation, math, probabilities	2400	x1046
1015F	Bracket Substring dp, strings	2300	x1045
1815D	XOR Counting bitmasks, combinatorics, dp, math	2600	x1031
18D	Seller Bob brute force, dp, greedy	2000	x1029
960G	Bandit Blues combinatorics, dp, fft, math	2900	x1028
900E	Maximum Questions data structures, dp, strings	2100	x1028
1863F	Divide, XOR, and Conquer bitmasks, dp, math	2600	x1026
1716E	Swap and Maximum Block bitmasks, data structures, dfs and similar, divide and conquer, dp	2500	x1022
18E	Flag 2 dp	2000	x1022
780F	Axel and Marston in Bitland bitmasks, dp, graphs, matrices	2400	x1019
1658E	Gojou and Matrix Game data structures, dp, games, hashing, implementation, math, number theory, sortings	2500	x1018
238C	World Eater Brothers dfs and similar, dp, greedy, trees	2100	x1018
31E	TV Game dp	2400	x1018
1172C1	Nauuo and Pictures (easy version) dp, probabilities	2300	x1016
251C	Number Transformation dp, greedy, number theory	2000	x1011
744C	Hongcow Buys a Deck of Cards bitmasks, brute force, dp	2400	x1010
1295F	Good Contest combinatorics, dp, probabilities	2700	x1008
1004E	Sonya and Ice Cream binary search, data structures, dp, greedy, shortest paths, trees	2400	x1008
917D	Stranger Trees dp, math, matrices, trees	2600	x1005
1794E	Labeling the Tree with Distances data structures, dp, greedy, hashing, implementation, trees	2400	x1004
1716F	Bags with Balls combinatorics, dp, math, number theory	2500	x999
489E	Hiking binary search, dp	2300	x998
835F	Roads in the Kingdom dfs and similar, dp, graphs, trees	2500	x997
398B	Painting The Wall dp, probabilities		x993
1662L	Il Derby della Madonnina data structures, dp, math		x991
1107G	Vasya and Maximum Profit binary search, constructive algorithms, data structures, dp, dsu	2400	x988
575F	Bulbo dp, greedy	2100	x983
28C	Bath Queue combinatorics, dp, probabilities	2200	x982
1930E	2..3...4.... Wonderful! Wonderful! combinatorics, dp, math	2400	x979
77C	Beavermuncher-0xFF dfs and similar, dp, dsu, greedy, trees	2100	x977
1332F	Independent Set dfs and similar, dp, trees	2500	x976
886E	Maximum Element combinatorics, dp, math	2400	x976
1967C	Fenwick Tree brute force, combinatorics, data structures, dp, math, matrices, trees		x975
1354F	Summoning Minions constructive algorithms, dp, flows, graph matchings, greedy, sortings	2500	x975
954F	Runner's Problem dp, matrices, sortings	2100	x975
756D	Bacterial Melee brute force, combinatorics, dp, string suffix structures	2400	x975
1625E1	Cats on the Upgrade (easy version) brute force, data structures, dfs and similar, divide and conquer, dp, graphs, trees	2500	x973
317D	Game with Powers dp, games	2300	x972
1093F	Vasya and Array dp	2400	x970