Problemset - Codeforces

Please read the new rule regarding the restriction on the use of AI tools. ×

→ Pay attention

Contest is running
Codeforces Round 973 (Div. 2)
01:53:15

*has extra registration

Before contest
Codeforces Round 974 (Div. 3)
23:53:14
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
513D2	Constrained Tree constructive algorithms, data structures	2600	x379
513D1	Constrained Tree dfs and similar	2400	x616
513C	Second price auction bitmasks, probabilities	2000	x1536
513B2	Permutations bitmasks, divide and conquer, math	1800	x2627
513B1	Permutations brute force	1400	x3617
513A	Game constructive algorithms, math	800	x20139
512E	Fox And Polygon constructive algorithms, divide and conquer	2900	x520
512D	Fox And Travelling dp, trees	2900	x968
510E	Fox And Dinner flows	2300	x2189
510D	Fox And Jumping bitmasks, brute force, dp, math	1900	x5399
510C	Fox And Names dfs and similar, graphs, sortings	1600	x16127
510B	Fox And Two Dots dfs and similar	1500	x13882
510A	Fox And Snake implementation	800	x82719
509F	Progress Monitoring dp, trees	2300	x1064
509E	Pretty Song math, strings	2000	x1788
509D	Restoring Numbers constructive algorithms, math	2200	x741
509C	Sums of Digits dp, greedy, implementation	2000	x2064
509B	Painting Pebbles constructive algorithms, greedy, implementation	1300	x9606
509A	Maximum in Table brute force, implementation	800	x38122
508E	Arthur and Brackets dp, greedy	2200	x1750
508D	Tanya and Password dfs and similar, graphs	2500	x3382
508C	Anya and Ghosts constructive algorithms, greedy	1600	x4456
508B	Anton and currency you all know greedy, math, strings	1300	x22561
508A	Pasha and Pixels brute force	1100	x7863
507E	Breaking Good dfs and similar, dp, graphs, shortest paths	2100	x2850
507D	The Maths Lecture dp, implementation	2200	x1749
507C	Guess Your Way Out! implementation, math, trees	1700	x4321
507B	Amr and Pins geometry, math	1400	x24463
507A	Amr and Music greedy, implementation, sortings	1000	x18223
506E	Mr. Kitayuta's Gift combinatorics, dp, matrices, strings	3000	x732
506D	Mr. Kitayuta's Colorful Graph brute force, dfs and similar, dsu, graphs	2400	x2122
505E	Mr. Kitayuta vs. Bamboos binary search, greedy	2900	x1392
505D	Mr. Kitayuta's Technology dfs and similar	2200	x2514
505C	Mr. Kitayuta, the Treasure Hunter dfs and similar, dp, two pointers	1900	x6335
505B	Mr. Kitayuta's Colorful Graph dfs and similar, dp, dsu, graphs	1400	x12865
505A	Mr. Kitayuta's Gift brute force, implementation, strings	1100	x6660
504E	Misha and LCP on Tree binary search, dfs and similar, hashing, string suffix structures, trees	3000	x908
504D	Misha and XOR bitmasks	2700	x303
501E	Misha and Palindrome Degree binary search, combinatorics, implementation	2500	x914
501D	Misha and Permutations Summation data structures	2000	x2391
501C	Misha and Forest constructive algorithms, data structures, greedy, sortings, trees	1500	x5640
501B	Misha and Changing Handles data structures, dsu, strings	1100	x16077
501A	Contest implementation	900	x22699
500G	New Year Running number theory, trees	3200	x157
500F	New Year Shopping divide and conquer, dp	2700	x731
500E	New Year Domino data structures, dp, dsu	2300	x1425
500D	New Year Santa Network combinatorics, dfs and similar, graphs, trees	1900	x3112
500C	New Year Book Reading constructive algorithms, greedy, implementation, math	1600	x5802
500B	New Year Permutation dfs and similar, dsu, graphs, greedy, math, sortings	1600	x8854
500A	New Year Transportation dfs and similar, graphs, implementation	1000	x52704
499B	Lecture implementation, strings	1000	x38993
499A	Watching a movie greedy, implementation	1000	x13926
498E	Stairs and Lines dp, matrices	2700	x465
498D	Traffic Jams in the Land data structures, dp, number theory	2400	x1110
498C	Array and Operations flows, graph matchings, number theory	2100	x3399
498B	Name That Tune dp, probabilities, two pointers	2400	x1166
498A	Crazy Town geometry	1700	x6442
497E	Subsequences Return dp, matrices	2900	x285
497D	Gears brute force, geometry, math	2900	x228
496E	Distributing Parts greedy, sortings	2100	x1654
496D	Tennis Game binary search	1900	x3009
496C	Removing Columns brute force, constructive algorithms, implementation	1500	x7713
496B	Secret Combination brute force, constructive algorithms, implementation	1500	x5862
496A	Minimum Difficulty brute force, implementation, math	900	x16342
495B	Modular Equations math, number theory	1600	x6883
495A	Digital Counter implementation	1100	x8445
494E	Sharti data structures, games	3200	x316
494D	Birthday data structures, dfs and similar, dp, trees	2700	x524
494C	Helping People dp, probabilities	2600	x851
494B	Obsessive String dp, strings	2000	x2693
494A	Treasure greedy	1500	x6197
493E	Vasya and Polynomial math	2800	x483
493D	Vasya and Chess constructive algorithms, games, math	1700	x9643
493C	Vasya and Basketball binary search, brute force, data structures, implementation, sortings, two pointers	1600	x6782
493B	Vasya and Wrestling implementation	1400	x13262
493A	Vasya and Football implementation	1300	x6100
492E	Vanya and Field math	2000	x1620
492D	Vanya and Computer Game binary search, implementation, math, sortings	1800	x3152
492C	Vanya and Exams greedy, sortings	1400	x14016
492B	Vanya and Lanterns binary search, implementation, math, sortings	1200	x74850
492A	Vanya and Cubes implementation	800	x49776
491C	Deciphering flows, graph matchings	2300	x409
491B	New York Hotel greedy, math	2100	x552
491A	Up the hill constructive algorithms, implementation	1000	x2895
490F	Treeland Tour data structures, dfs and similar, dp, trees	2200	x1677
490E	Restoring Increasing Sequence binary search, brute force, greedy, implementation	2000	x1592
490D	Chocolate brute force, dfs and similar, math, meet-in-the-middle, number theory	1900	x2130
490C	Hacking Cypher brute force, math, number theory, strings	1700	x9060
490B	Queue dsu, implementation	1500	x5973
490A	Team Olympiad greedy, implementation, sortings	800	x58835
489F	Special Matrices combinatorics, dp	2100	x1664
489E	Hiking binary search, dp	2300	x1027
489D	Unbearable Controversy of Being brute force, combinatorics, dfs and similar, graphs	1700	x6663
489C	Given Length and Sum of Digits... dp, greedy, implementation	1400	x45986
489B	BerSU Ball dfs and similar, dp, graph matchings, greedy, sortings, two pointers	1200	x48471
489A	SwapSort greedy, implementation, sortings	1200	x10025
488B	Candy Boxes brute force, constructive algorithms, math	1900	x2117
488A	Giga Tower brute force	1100	x14236
487E	Tourists data structures, dfs and similar, graphs, trees	3200	x2319
487D	Conveyor Belts data structures	2700	x890