Problemset - Codeforces

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Codeforces Round 978 (Div. 2)
6 days

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Problems

#	Name
1031E	Triple Flips constructive algorithms	2600	x530
1031D	Minimum path greedy	1900	x2804
1031C	Cram Time greedy	1600	x5321
1031B	Curiosity Has No Limits	1500	x3909
1031A	Golden Plate implementation, math	800	x12852
1030G	Linear Congruential Generator number theory	2900	x359
1030F	Putting Boxes Together data structures	2500	x808
1030E	Vasya and Good Sequences bitmasks, dp	2000	x3093
1030D	Vasya and Triangle geometry, number theory	1800	x5943
1030C	Vasya and Golden Ticket implementation	1300	x9437
1030B	Vasya and Cornfield geometry	1100	x12297
1030A	In Search of an Easy Problem implementation	800	x130257
1029F	Multicolored Markers binary search, brute force, math, number theory	2000	x2574
1029E	Tree with Small Distances dp, graphs, greedy	2100	x2927
1029D	Concatenated Multiples implementation, math	1900	x3872
1029C	Maximal Intersection greedy, math, sortings	1600	x7546
1029B	Creating the Contest dp, greedy, math	1200	x16891
1029A	Many Equal Substrings implementation, strings	1300	x12307
1028H	Make Square math	2900	x487
1028G	Guess the number dp, interactive	3000	x555
1028F	Make Symmetrical brute force	2900	x524
1028E	Restore Array constructive algorithms	2400	x1141
1028D	Order book combinatorics, data structures, greedy	2100	x1743
1028C	Rectangles geometry, implementation, sortings	1600	x4582
1028B	Unnatural Conditions constructive algorithms, math	1200	x9057
1028A	Find Square implementation	800	x10793
1027G	X-mouse in the Campus bitmasks, math, number theory	2600	x307
1027F	Session in BSU binary search, dfs and similar, dsu, graph matchings, graphs	2400	x1546
1027E	Inverse Coloring combinatorics, dp, math	2100	x2131
1027D	Mouse Hunt dfs and similar, graphs	1700	x7448
1027C	Minimum Value Rectangle greedy	1600	x6842
1027B	Numbers on the Chessboard implementation, math	1200	x8354
1027A	Palindromic Twist implementation, strings	1000	x16283
1025G	Company Acquisitions constructive algorithms, math	3200	x730
1025F	Disjoint Triangles geometry	2700	x655
1025E	Colored Cubes constructive algorithms, implementation, matrices	2700	x568
1025D	Recovering BST brute force, dp, math, number theory, trees	2100	x3647
1025C	Plasticine zebra constructive algorithms, implementation	1600	x6125
1025B	Weakened Common Divisor brute force, greedy, number theory	1600	x7883
1025A	Doggo Recoloring implementation, sortings	900	x15123
1023G	Pisces data structures, flows, trees	3400	x117
1023F	Mobile Phone Network dfs and similar, dsu, graphs, trees	2600	x882
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x2031
1023D	Array Restoration constructive algorithms, data structures	1700	x4035
1023C	Bracket Subsequence greedy	1200	x9900
1023B	Pair of Toys math	1000	x10832
1023A	Single Wildcard Pattern Matching brute force, implementation, strings	1200	x8677
1020B	Badge brute force, dfs and similar, graphs	1000	x21116
1020A	New Building for SIS math	1000	x8991
1019E	Raining season data structures, divide and conquer, trees	3200	x336
1019D	Large Triangle binary search, geometry, sortings	2700	x639
1019C	Sergey's problem constructive algorithms, graphs	3000	x1110
1019B	The hat binary search, interactive	2000	x1949
1019A	Elections brute force, greedy	1700	x4635
1017H	The Films brute force	3300	x147
1017G	The Tree data structures	3200	x893
1017F	The Neutral Zone brute force, math	2500	x816
1017E	The Supersonic Rocket geometry, hashing, strings	2400	x1026
1017D	The Wu bitmasks, brute force, data structures	1900	x3498
1017C	The Phone Number constructive algorithms, greedy	1600	x6008
1017B	The Bits implementation, math	1200	x9138
1017A	The Rank implementation	800	x20418
1016G	Appropriate Team bitmasks, math, number theory	2700	x265
1016F	Road Projects dfs and similar, dp, trees	2600	x812
1016E	Rest In The Shades binary search, geometry	2400	x1156
1016D	Vasya And The Matrix constructive algorithms, flows, math	1800	x4693
1016C	Vasya And The Mushrooms dp, implementation	1800	x3709
1016B	Segment Occurrences brute force, implementation	1300	x9460
1016A	Death Note greedy, implementation, math	900	x14902
1015F	Bracket Substring dp, strings	2300	x1115
1015E2	Stars Drawing (Hard Edition) binary search, dp, greedy	1900	x3600
1015E1	Stars Drawing (Easy Edition) brute force, dp, greedy	1700	x5777
1015D	Walking Between Houses constructive algorithms, greedy	1600	x8199
1015C	Songs Compression sortings	1100	x17987
1015B	Obtaining the String implementation	1200	x11578
1015A	Points in Segments implementation	800	x20933
1013B	And greedy	1200	x7643
1013A	Piles With Stones math	800	x10952
1012F	Passports dp, implementation	3400	x158
1012E	Cycle sort dsu, math	3100	x322
1012D	AB-Strings constructive algorithms, strings	2800	x371
1012C	Hills dp	1900	x3488
1012B	Chemical table constructive algorithms, dfs and similar, dsu, graphs, matrices	1900	x3952
1012A	Photo of The Sky brute force, implementation, math, sortings	1500	x6426
1011B	Planning The Expedition binary search, brute force, implementation	1200	x10093
1011A	Stages greedy, implementation, sortings	900	x12179
1010F	Tree fft, graphs, trees	3400	x218
1010E	Store data structures	2700	x335
1010D	Mars rover dfs and similar, graphs, implementation, trees	2000	x2379
1010C	Border number theory	1800	x4845
1010B	Rocket binary search, interactive	1800	x5188
1010A	Fly binary search, math	1500	x8061
1009G	Allowed Letters bitmasks, flows, graph matchings, graphs, greedy	2400	x823
1009F	Dominant Indices data structures, dsu, trees	2300	x5630
1009E	Intercity Travelling combinatorics, math, probabilities	2000	x2976
1009D	Relatively Prime Graph brute force, constructive algorithms, graphs, greedy, math	1700	x6240
1009C	Annoying Present greedy, math	1700	x5235
1009B	Minimum Ternary String greedy, implementation	1400	x10097
1009A	Game Shopping implementation	800	x11751
1008B	Turn the Rectangles greedy, sortings	1000	x11403