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
15:47:40
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
1067A	Array Without Local Maximums dp	1900	x2781
1066F	Yet another 2D Walking dp	2100	x1760
1066E	Binary Numbers AND Sum data structures, implementation, math	1700	x6000
1066D	Boxes Packing binary search, implementation	1800	x5293
1066C	Books Queries implementation	1400	x9379
1066B	Heaters greedy, two pointers	1500	x8065
1066A	Vova and Train math	1100	x14256
1065G	Fibonacci Suffix strings	2700	x239
1065F	Up and Down the Tree dfs and similar, dp, trees	2500	x1133
1065E	Side Transmutations combinatorics, strings	2300	x1018
1065D	Three Pieces dfs and similar, dp, shortest paths	2200	x1270
1065C	Make It Equal greedy	1600	x7651
1065B	Vasya and Isolated Vertices constructive algorithms, graphs	1300	x10758
1065A	Vasya and Chocolate implementation, math	800	x14543
1064B	Equations of Mathematical Magic math	1200	x7448
1064A	Make a triangle! brute force, geometry, math	800	x21702
1063F	String Journey data structures, dp, string suffix structures	3300	x800
1063E	Lasers and Mirrors constructive algorithms, math	3000	x330
1063D	Candies for Children brute force, math	2600	x420
1063C	Dwarves, Hats and Extrasensory Abilities binary search, constructive algorithms, geometry, interactive	1900	x2790
1063B	Labyrinth graphs, shortest paths	1800	x7057
1063A	Oh Those Palindromes constructive algorithms, strings	1300	x10211
1062F	Upgrading Cities dfs and similar, graphs	2900	x543
1062E	Company binary search, data structures, dfs and similar, greedy, trees	2300	x1707
1062D	Fun with Integers dfs and similar, graphs, implementation, math	1800	x3862
1062C	Banh-mi greedy, implementation, math	1600	x5311
1062B	Math greedy, math, number theory	1500	x8403
1062A	A Prank greedy, implementation	1300	x8654
1061F	Lost Root interactive, probabilities	2400	x684
1061E	Politics flows, graphs	2600	x511
1061D	TV Shows data structures, greedy, implementation, sortings	2000	x2292
1061C	Multiplicity data structures, dp, implementation, math, number theory	1700	x8350
1061B	Views Matter greedy, implementation, sortings	1400	x7216
1061A	Coins greedy, implementation, math	800	x21313
1060H	Sophisticated Device constructive algorithms	3300	x210
1060G	Balls and Pockets data structures	3400	x134
1060F	Shrinking Tree combinatorics, dp	2900	x534
1060E	Sergey and Subway dfs and similar, dp, trees	2000	x2976
1060D	Social Circles greedy, math	1900	x3557
1060C	Maximum Subrectangle binary search, implementation, two pointers	1600	x4802
1060B	Maximum Sum of Digits greedy	1100	x8779
1060A	Phone Numbers brute force	800	x13707
1059E	Split the Tree binary search, data structures, dp, greedy, trees	2400	x1354
1059D	Nature Reserve binary search, geometry, ternary search	2200	x2542
1059C	Sequence Transformation constructive algorithms, math	1600	x6973
1059B	Forgery implementation	1300	x6898
1059A	Cashier implementation	1000	x12437
1057C	Tanya and Colored Candies *special problem, dp	2000	x867
1057B	DDoS *special problem, brute force	1400	x1790
1057A	Bmail Computer Network *special problem, dfs and similar, trees	900	x5753
1056H	Detect Robots data structures, strings	3200	x145
1056G	Take Metro brute force, data structures, graphs	2900	x238
1056F	Write The Contest binary search, dp, math	2500	x465
1056E	Check Transcription brute force, data structures, hashing, strings	2100	x1979
1056D	Decorate Apple Tree constructive algorithms, dfs and similar, dp, graphs, greedy, sortings, trees	1600	x5624
1056C	Pick Heroes greedy, implementation, interactive, sortings	1700	x2318
1056B	Divide Candies math, number theory	1600	x4065
1056A	Determine Line implementation	800	x6534
1055G	Jellyfish Nightmare	3500	x75
1055F	Tree and XOR strings, trees	2900	x446
1055E	Segments on the Line binary search, dp	2500	x707
1055D	Refactoring greedy, implementation, strings	2400	x616
1055C	Lucky Days math, number theory	1900	x1841
1055B	Alice and Hairdresser dsu, implementation	1300	x4893
1055A	Metro graphs	900	x10373
1054H	Epic Convolution chinese remainder theorem, fft, math, number theory	3500	x172
1054G	New Road Network constructive algorithms, greedy, math	3300	x260
1054F	Electric Scheme flows, graph matchings	2700	x306
1054E	Chips Puzzle constructive algorithms, implementation, math	2400	x475
1054D	Changing Array greedy, implementation	1900	x2213
1054C	Candies Distribution constructive algorithms, implementation	1500	x4228
1054B	Appending Mex implementation	1000	x6426
1054A	Elevator or Stairs? implementation	800	x8972
1053E	Euler tour constructive algorithms, trees	3500	x194
1051G	Distinctification data structures, dsu, greedy	2900	x364
1051F	The Shortest Statement graphs, shortest paths, trees	2400	x2672
1051E	Vasya and Big Integers binary search, data structures, dp, hashing, strings	2600	x874
1051D	Bicolorings bitmasks, dp	1700	x7126
1051C	Vasya and Multisets brute force, dp, greedy, implementation, math	1500	x9132
1051B	Relatively Prime Pairs greedy, math, number theory	1000	x16483
1051A	Vasya And Password greedy, implementation, strings	1200	x8308
1047B	Cover Points geometry, math	900	x16890
1047A	Little C Loves 3 I math	800	x19547
1046I	Say Hello geometry	2300	x303
1046F	Splitting money implementation	1400	x2725
1046C	Space Formula greedy	1400	x3036
1045J	Moonwalk challenge data structures, strings, trees	2600	x163
1045I	Palindrome Pairs hashing, strings	1600	x4093
1045H	Self-exploration math	2400	x365
1045G	AI robots data structures	2200	x1524
1045F	Shady Lady geometry, math	3400	x92
1045E	Ancient civilizations constructive algorithms, geometry	3200	x119
1045D	Interstellar battle math, probabilities, trees	2200	x635
1045C	Hyperspace Highways dfs and similar, graphs, trees	2300	x620
1045B	Space Isaac hashing, number theory	2400	x491
1045A	Last chance data structures, flows, graph matchings, graphs, trees	2500	x319
1044F	DFS data structures	2700	x502
1044E	Grid Sort implementation	3100	x112
1044D	Deduction Queries data structures, dsu	2400	x969
1044C	Optimal Polygon Perimeter dp, geometry	2100	x1203