Problemset - Codeforces

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Codeforces Round 978 (Div. 2)
5 days

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Problems

#	Name
1154E	Two Teams data structures, implementation, sortings	1800	x6269
1154D	Walking Robot greedy	1500	x9952
1154C	Gourmet Cat implementation, math	1400	x10393
1154B	Make Them Equal math	1200	x16608
1154A	Restoring Three Numbers math	800	x70760
1153F	Serval and Bonus Problem combinatorics, dp, math, probabilities	2600	x798
1153E	Serval and Snake binary search, brute force, interactive	2200	x1500
1153D	Serval and Rooted Tree binary search, dfs and similar, dp, greedy, trees	1900	x4990
1153C	Serval and Parenthesis Sequence greedy, strings	1700	x7400
1153B	Serval and Toy Bricks constructive algorithms, greedy	1200	x9074
1153A	Serval and Bus brute force, math	1000	x11509
1152F2	Neko Rules the Catniverse (Large Version) bitmasks, dp, matrices	3000	x643
1152F1	Neko Rules the Catniverse (Small Version) bitmasks, dp, matrices	2800	x562
1152E	Neko and Flashback constructive algorithms, dfs and similar, graphs	2400	x976
1152D	Neko and Aki's Prank dp, greedy, trees	2100	x2418
1152C	Neko does Maths brute force, math, number theory	1800	x6668
1152B	Neko Performs Cat Furrier Transform bitmasks, constructive algorithms, dfs and similar, math	1300	x8929
1152A	Neko Finds Grapes greedy, implementation, math	800	x15153
1151F	Sonya and Informatics combinatorics, dp, matrices, probabilities	2300	x1221
1151E	Number of Components combinatorics, data structures, dp, math	2100	x3331
1151D	Stas and the Queue at the Buffet greedy, math, sortings	1600	x8418
1151C	Problem for Nazar constructive algorithms, math	1800	x5346
1151B	Dima and a Bad XOR bitmasks, brute force, constructive algorithms, dp	1600	x11178
1151A	Maxim and Biology brute force, strings	1000	x11210
1150B	Tiling Challenge greedy, implementation	900	x11298
1150A	Stock Arbitraging greedy, implementation	800	x11815
1149E	Election Promises games, graphs	3200	x524
1149D	Abandoning Roads brute force, dp, graphs, greedy	3000	x784
1149C	Tree Generator™ data structures, implementation, trees	2700	x1271
1149B	Three Religions dp, implementation, strings	2200	x1896
1149A	Prefix Sum Primes constructive algorithms, greedy, math, number theory	1200	x15201
1148H	Holy Diver data structures	3500	x257
1148G	Gold Experience constructive algorithms, graphs, math, number theory, probabilities	3300	x321
1148F	Foo Fighters bitmasks, constructive algorithms	2700	x1029
1148E	Earth Wind and Fire constructive algorithms, greedy, math, sortings, two pointers	2300	x1677
1148D	Dirty Deeds Done Dirt Cheap greedy, sortings	1800	x4972
1148C	Crazy Diamond constructive algorithms, sortings	1700	x5298
1148B	Born This Way binary search, brute force, two pointers	1600	x7384
1148A	Another One Bites The Dust greedy	800	x14875
1147F	Zigzag Game games, interactive	3500	x263
1147E	Rainbow Coins interactive	3000	x340
1147D	Palindrome XOR dfs and similar, graphs	2400	x750
1147C	Thanos Nim games	2000	x3257
1147B	Chladni Figure brute force, strings	1900	x2878
1147A	Hide and Seek graphs	1500	x5247
1146H	Satanic Panic dp, geometry	2900	x607
1146G	Zoning Restrictions dp, flows, graphs	2700	x821
1146F	Leaf Partition dp, trees	2500	x1181
1146E	Hot is Cold bitmasks, data structures, divide and conquer, implementation	2400	x893
1146D	Frog Jumping dfs and similar, math, number theory	2100	x1102
1146C	Tree Diameter bitmasks, graphs, interactive	1700	x3689
1146B	Hate "A" implementation, strings	1100	x8585
1146A	Love "A" implementation, strings	800	x21867
1145G	AI Takeover interactive		x175
1145F	Neat Words		x513
1145E	Fourier Doodles		x427
1145D	Pigeon d'Or implementation		x1160
1145C	Mystery Circuit bitmasks, brute force		x802
1145B	Kanban Numbers brute force		x1452
1145A	Thanos Sort implementation		x8610
1144G	Two Merged Sequences dp, greedy	2400	x1977
1144F	Graph Without Long Directed Paths dfs and similar, graphs	1700	x11626
1144E	Median String bitmasks, math, number theory, strings	1900	x4155
1144D	Equalize Them All constructive algorithms, greedy	1400	x10269
1144C	Two Shuffled Sequences constructive algorithms, sortings	1000	x15344
1144B	Parity Alternated Deletions greedy, implementation, sortings	900	x17074
1144A	Diverse Strings implementation, strings	800	x19245
1143C	Queen dfs and similar, trees	1400	x12412
1143B	Nirvana brute force, math, number theory	1200	x10510
1143A	The Doors implementation	800	x13264
1142E	Pink Floyd graphs, interactive	3200	x511
1142D	Foreigner dp	2800	x502
1142C	U2 geometry	2400	x1361
1142B	Lynyrd Skynyrd data structures, dfs and similar, dp, math, trees	2000	x2983
1142A	The Beatles brute force, math	1700	x3422
1141G	Privatization of Roads in Treeland binary search, constructive algorithms, dfs and similar, graphs, greedy, trees	1900	x2274
1141F2	Same Sum Blocks (Hard) data structures, greedy	1900	x4199
1141F1	Same Sum Blocks (Easy) greedy	1900	x3861
1141E	Superhero Battle math	1700	x6739
1141D	Colored Boots greedy, implementation	1500	x8534
1141C	Polycarp Restores Permutation math	1500	x11451
1141B	Maximal Continuous Rest implementation	900	x21305
1141A	Game 23 implementation, math	1000	x31850
1140G	Double Tree data structures, divide and conquer, shortest paths, trees	2700	x497
1140F	Extending Set of Points data structures, divide and conquer, dsu	2600	x1212
1140E	Palindrome-less Arrays combinatorics, divide and conquer, dp	2200	x1940
1140D	Minimum Triangulation dp, greedy, math	1200	x12590
1140C	Playlist brute force, data structures, sortings	1600	x9561
1140B	Good String implementation, strings	1200	x11312
1140A	Detective Book implementation	1000	x12298
1139F	Dish Shopping data structures, divide and conquer	2500	x436
1139E	Maximize Mex flows, graph matchings, graphs	2400	x1811
1139D	Steps to One dp, math, number theory, probabilities	2300	x2303
1139C	Edgy Trees dfs and similar, dsu, graphs, math, trees	1500	x12625
1139B	Chocolates greedy, implementation	1000	x16387
1139A	Even Substrings implementation, strings	800	x16786
1138B	Circus brute force, greedy, math, strings	1800	x4024
1138A	Sushi for Two binary search, greedy, implementation	900	x18211
1137F	Matches Are Not a Child's Play data structures, trees	3400	x467
1137E	Train Car Selection data structures, greedy	2700	x511