Problemset - Codeforces

→ Pay attention

Contest is running
2023 Post World Finals Online ICPC Challenge powered by Huawei
10 days
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
570E	Pig and Palindromes combinatorics, dp	2300	x1808
570D	Tree Requests binary search, bitmasks, constructive algorithms, dfs and similar, graphs, trees	2200	x6674
570C	Replacement constructive algorithms, data structures, implementation	1600	x8972
570B	Simple Game constructive algorithms, games, greedy, implementation, math	1300	x15774
570A	Elections implementation	1100	x13739
569B	Inventory greedy, math	1200	x6949
569A	Music implementation, math	1500	x4740
568E	Longest Increasing Subsequence data structures, dp	3000	x572
568D	Sign Posts brute force, geometry, math	2800	x298
568C	New Language 2-sat, greedy	2600	x774
568B	Symmetric and Transitive combinatorics, dp, math	1900	x2219
568A	Primes or Palindromes? brute force, implementation, math, number theory	1600	x4999
567F	Mausoleum dp	2400	x565
567E	President and Roads dfs and similar, graphs, hashing, shortest paths	2200	x1641
567D	One-Dimensional Battle Ships binary search, data structures, greedy, sortings	1700	x4649
567C	Geometric Progression binary search, data structures, dp	1700	x9281
567B	Berland National Library implementation	1300	x8338
567A	Lineland Mail greedy, implementation	900	x30612
566G	Max and Min geometry	2500	x333
566F	Clique in the Divisibility Graph dp, math, number theory	1500	x3523
566E	Restoring Map bitmasks, constructive algorithms, trees	3200	x601
566D	Restructuring Company data structures, dsu	1900	x3097
566C	Logistical Questions dfs and similar, divide and conquer, trees	3000	x695
566B	Replicating Processes constructive algorithms, greedy	2600	x259
566A	Matching Names dfs and similar, strings, trees	2300	x869
560B	Gerald is into Art constructive algorithms, implementation	1200	x7836
560A	Currency System in Geraldion implementation, sortings	1000	x16832
559E	Gerald and Path dp, sortings	3000	x856
559D	Randomizer combinatorics, geometry, probabilities	2800	x423
559C	Gerald and Giant Chess combinatorics, dp, math, number theory	2200	x6148
559B	Equivalent Strings divide and conquer, hashing, sortings, strings	1700	x10365
559A	Gerald's Hexagon brute force, geometry, math	1600	x10285
558E	A Simple Task data structures, sortings, strings	2300	x5600
558D	Guess Your Way Out! II data structures, implementation, sortings	2300	x1110
558C	Amr and Chemistry brute force, graphs, greedy, math, shortest paths	1900	x3920
558B	Amr and The Large Array implementation	1300	x7756
558A	Lala Land and Apple Trees brute force, implementation, sortings	1100	x10174
557E	Ann and Half-Palindrome data structures, dp, graphs, string suffix structures, strings, trees	2300	x1055
557D	Vitaly and Cycle combinatorics, dfs and similar, graphs, math	2000	x2136
557C	Arthur and Table brute force, data structures, dp, greedy, math, sortings	1900	x3940
557B	Pasha and Tea constructive algorithms, implementation, math, sortings	1500	x7079
557A	Ilya and Diplomas greedy, implementation, math	1100	x8204
556B	Case of Fake Numbers brute force, implementation	1100	x7878
556A	Case of the Zeros and Ones greedy	900	x37952
555E	Case of Computer Network dfs and similar, graphs, trees	2800	x2191
555D	Case of a Top Secret binary search, implementation, math	2500	x857
555C	Case of Chocolate data structures	2200	x1945
555B	Case of Fugitive data structures, greedy, sortings	2000	x3686
555A	Case of Matryoshkas implementation	1500	x6491
554B	Ohana Cleans Up brute force, greedy, strings	1200	x9686
554A	Kyoya and Photobooks brute force, math, strings	900	x12722
553E	Kyoya and Train dp, fft, graphs, math, probabilities	3200	x536
553D	Nudist Beach binary search, graphs, greedy	2300	x980
553C	Love Triangles dfs and similar, dsu, graphs	2200	x1734
553B	Kyoya and Permutation binary search, combinatorics, constructive algorithms, greedy, implementation, math	1900	x2094
553A	Kyoya and Colored Balls combinatorics, dp, math	1500	x8377
552E	Vanya and Brackets brute force, dp, expression parsing, greedy, implementation, strings	2100	x1409
552D	Vanya and Triangles brute force, combinatorics, data structures, geometry, math, sortings	1900	x4356
552C	Vanya and Scales brute force, dp, greedy, math, meet-in-the-middle, number theory	1900	x5391
552B	Vanya and Books implementation, math	1200	x15202
552A	Vanya and Table implementation, math	1000	x9331
551E	GukiZ and GukiZiana binary search, data structures, implementation	2500	x1650
551D	GukiZ and Binary Operations combinatorics, implementation, math, matrices, number theory	2100	x1723
551C	GukiZ hates Boxes binary search, greedy	2200	x3444
551B	ZgukistringZ brute force, constructive algorithms, implementation, strings	1800	x3759
551A	GukiZ and Contest brute force, implementation, sortings	800	x16020
550E	Brackets in Implications constructive algorithms, greedy, implementation, math	2200	x1376
550D	Regular Bridge constructive algorithms, graphs, implementation	1900	x3244
550C	Divisibility by Eight brute force, dp, math	1500	x27274
550B	Preparing Olympiad bitmasks, brute force	1400	x19493
550A	Two Substrings brute force, dp, greedy, implementation, strings	1500	x36317
549H	Degenerate Matrix binary search, math	2100	x1785
549G	Happy Line constructive algorithms, greedy, sortings	2200	x2393
549F	Yura and Developers data structures, divide and conquer	2800	x850
549E	Sasha Circle geometry, math	2700	x145
549D	Haar Features greedy, implementation	1900	x2124
549C	The Game Of Parity games	2200	x1717
549B	Looksery Party constructive algorithms, dfs and similar, graphs, greedy	2300	x1476
549A	Face Detection implementation, strings	900	x9348
548B	Mike and Fun brute force, dp, greedy, implementation	1400	x8275
548A	Mike and Fax brute force, implementation, strings	1100	x9835
547E	Mike and Friends data structures, string suffix structures, strings, trees	2800	x1941
547D	Mike and Fish constructive algorithms, dfs and similar, graphs	2600	x2420
547C	Mike and Foam bitmasks, combinatorics, dp, math, number theory	2300	x2703
547B	Mike and Feet binary search, data structures, dp, dsu	1900	x8223
547A	Mike and Frog brute force, greedy, implementation, math	2200	x2311
546E	Soldier and Traveling flows, graphs, math	2100	x3485
546D	Soldier and Number Game constructive algorithms, dp, math, number theory	1700	x11246
546C	Soldier and Cards brute force, dfs and similar, games	1400	x17071
546B	Soldier and Badges brute force, greedy, implementation, sortings	1200	x17189
546A	Soldier and Bananas brute force, implementation, math	800	x167960
545E	Paths and Trees graphs, greedy, shortest paths	2000	x4394
545D	Queue greedy, implementation, sortings	1300	x24082
545C	Woodcutters dp, greedy	1500	x26262
545B	Equidistant String greedy	1100	x11425
545A	Toy Cars implementation	900	x11425
544B	Sea and Islands constructive algorithms, implementation	1400	x7820
544A	Set of Strings implementation, strings	1100	x7728
543E	Listening to Music constructive algorithms, data structures	3200	x278
543D	Road Improvement dp, trees	2300	x2537