Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
1736C2	Good Subarrays (Hard Version) binary search, data structures, dp, two pointers	2400	x1228
1343F	Restore the Permutation by Sorted Segments brute force, constructive algorithms, data structures, greedy, implementation	2400	x1228
1443E	Long Permutation brute force, math, two pointers	2400	x1221
962F	Simple Cycles Edges dfs and similar, graphs, trees	2400	x1206
1005E2	Median on Segments (General Case Edition) sortings	2400	x1205
1542E1	Abnormal Permutation Pairs (easy version) combinatorics, dp, fft, math	2400	x1180
906C	Party bitmasks, brute force, dp, graphs	2400	x1179
593D	Happy Tree Party data structures, dfs and similar, graphs, math, trees	2400	x1178
1879E	Interactive Game with Coloring brute force, constructive algorithms, dfs and similar, graphs, implementation, interactive, trees	2400	x1177
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1173
1764E	Doremy's Number Line dp, greedy, sortings	2400	x1173
1739E	Cleaning Robot bitmasks, dp	2400	x1164
1934D2	XOR Break --- Game Version bitmasks, games, greedy, interactive	2400	x1159
524E	Rooks and Rectangles data structures, sortings	2400	x1151
1142C	U2 geometry	2400	x1150
1585F	Non-equal Neighbours combinatorics, dp, math	2400	x1148
498B	Name That Tune dp, probabilities, two pointers	2400	x1146
1738F	Connectivity Addicts constructive algorithms, dsu, graphs, greedy, interactive, shortest paths, trees	2400	x1145
1839E	Decreasing Game constructive algorithms, dfs and similar, dp, greedy, interactive	2400	x1141
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1134
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1133
679C	Bear and Square Grid dfs and similar, dsu, implementation	2400	x1129
835E	The penguin's game binary search, constructive algorithms, interactive	2400	x1123
1028E	Restore Array constructive algorithms	2400	x1121
1264C	Beautiful Mirrors with queries data structures, probabilities	2400	x1120
1205C	Palindromic Paths implementation, interactive	2400	x1115
1680D	Dog Walking brute force, greedy, math	2400	x1109
1632E1	Distance Tree (easy version) binary search, data structures, dfs and similar, graphs, shortest paths, trees	2400	x1107
1679E	Typical Party in Dorm bitmasks, combinatorics, dp, strings	2400	x1092
605C	Freelancer's Dreams geometry	2400	x1091
802N	April Fools' Problem (medium) binary search, flows, graphs	2400	x1088
601D	Acyclic Organic Compounds data structures, dfs and similar, dsu, hashing, strings, trees	2400	x1088
377D	Developing Game data structures	2400	x1079
1089K	King Kog's Reception data structures	2400	x1078
808F	Card Game binary search, flows, graphs	2400	x1066
1619H	Permutation and Queries brute force, data structures, divide and conquer, two pointers	2400	x1065
1868C	Travel Plan combinatorics, dp, implementation, math, trees	2400	x1062
498D	Traffic Jams in the Land data structures, dp, number theory	2400	x1061
526E	Transmitting Levels dp, implementation	2400	x1052
1874B	Jellyfish and Math bitmasks, brute force, dfs and similar, dp, graphs, shortest paths	2400	x1051
1578L	Labyrinth binary search, dsu, greedy	2400	x1047
641D	Little Artem and Random Variable dp, implementation, math, probabilities	2400	x1046
1936C	Pokémon Arena data structures, graphs, greedy, implementation, shortest paths, sortings	2400	x1043
1795F	Blocking Chips binary search, constructive algorithms, dfs and similar, greedy, trees	2400	x1038
17D	Notepad number theory	2400	x1028
258E	Little Elephant and Tree data structures, dfs and similar, trees	2400	x1025
1924C	Fractal Origami geometry, math, matrices	2400	x1024
749E	Inversions After Shuffle data structures, probabilities	2400	x1024
452E	Three strings data structures, dsu, string suffix structures, strings	2400	x1024
1735E	House Planning constructive algorithms, data structures, graph matchings, greedy	2400	x1021
780F	Axel and Marston in Bitland bitmasks, dp, graphs, matrices	2400	x1018
1774F1	Magician and Pigs (Easy Version) brute force, data structures, implementation	2400	x1016
1526E	Oolimry and Suffix Array combinatorics, constructive algorithms, math	2400	x1016
31E	TV Game dp	2400	x1016
632F	Magic Matrix brute force, divide and conquer, graphs, matrices, trees	2400	x1015
1585E	Frequency Queries data structures, dfs and similar, trees	2400	x1009
1004E	Sonya and Ice Cream binary search, data structures, dp, greedy, shortest paths, trees	2400	x1007
125E	MST Company binary search, graphs	2400	x1005
1794E	Labeling the Tree with Distances data structures, dp, greedy, hashing, implementation, trees	2400	x1001
744C	Hongcow Buys a Deck of Cards bitmasks, brute force, dp	2400	x1001
707E	Garlands data structures	2400	x999
1605E	Array Equalizer binary search, greedy, implementation, math, number theory, sortings, two pointers	2400	x995
1282E	The Cake Is a Lie constructive algorithms, data structures, dfs and similar, graphs	2400	x990
1107G	Vasya and Maximum Profit binary search, constructive algorithms, data structures, dp, dsu	2400	x986
1091E	New Year and the Acquaintance Estimation binary search, data structures, graphs, greedy, implementation, math, sortings	2400	x974
756D	Bacterial Melee brute force, combinatorics, dp, string suffix structures	2400	x974
1221F	Choose a Square binary search, data structures, sortings	2400	x973
886E	Maximum Element combinatorics, dp, math	2400	x972
1930E	2..3...4.... Wonderful! Wonderful! combinatorics, dp, math	2400	x970
1093F	Vasya and Array dp	2400	x970
1044D	Deduction Queries data structures, dsu	2400	x968
1194F	Crossword Expert combinatorics, dp, number theory, probabilities, two pointers	2400	x964
585C	Alice, Bob, Oranges and Apples number theory	2400	x961
621D	Rat Kwesh and Cheese brute force, constructive algorithms, math	2400	x960
1038E	Maximum Matching bitmasks, brute force, dfs and similar, dp, graphs	2400	x951
1882E1	Two Permutations (Easy Version) brute force, constructive algorithms, greedy, number theory	2400	x948
1132G	Greedy Subsequences data structures, dp, trees	2400	x948
1784D	Wooden Spoon combinatorics, dp	2400	x944
1106F	Lunar New Year and a Recursive Sequence math, matrices, number theory	2400	x944
767E	Change-free greedy	2400	x943
1152E	Neko and Flashback constructive algorithms, dfs and similar, graphs	2400	x932
1016E	Rest In The Shades binary search, geometry	2400	x928
297C	Splitting the Uniqueness constructive algorithms	2400	x927
1007B	Pave the Parallelepiped bitmasks, brute force, combinatorics, math, number theory	2400	x921
1670F	Jee, You See? bitmasks, combinatorics, dp	2400	x915
1817C	Similar Polynomials combinatorics, math	2400	x914
1099F	Cookies binary search, data structures, dfs and similar, dp, games, trees	2400	x907
416D	Population Size greedy, implementation, math	2400	x902
1129C	Morse Code binary search, data structures, dp, hashing, sortings, string suffix structures, strings	2400	x896
1032F	Vasya and Maximum Matching dp, trees	2400	x894
1913E	Matrix Problem flows, graphs	2400	x889
1080E	Sonya and Matrix Beauty strings	2400	x886
676E	The Last Fight Between Human and AI math	2400	x882
1902F	Trees and XOR Queries Again data structures, dfs and similar, divide and conquer, graphs, implementation, math, trees	2400	x881
329C	Graph Reconstruction constructive algorithms	2400	x877
164C	Machine Programming flows, graphs	2400	x874
990F	Flow Control dfs and similar, dp, greedy, trees	2400	x869
939F	Cutlet data structures, dp	2400	x867
1252F	Regular Forestation hashing, trees	2400	x866
1098C	Construct a tree binary search, constructive algorithms, dfs and similar, graphs, greedy, trees	2400	x865