Problemset - Codeforces

→ Pay attention

Before contest
Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
4 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
510A	Fox And Snake implementation	800	x85201
509F	Progress Monitoring dp, trees	2300	x1082
509E	Pretty Song math, strings	2000	x1802
509D	Restoring Numbers constructive algorithms, math	2200	x760
509C	Sums of Digits dp, greedy, implementation	2000	x2102
509B	Painting Pebbles constructive algorithms, greedy, implementation	1300	x9653
509A	Maximum in Table brute force, implementation	800	x38704
508E	Arthur and Brackets dp, greedy	2200	x1767
508D	Tanya and Password dfs and similar, graphs	2500	x3454
508C	Anya and Ghosts constructive algorithms, greedy	1600	x4476
508B	Anton and currency you all know greedy, math, strings	1300	x22737
508A	Pasha and Pixels brute force	1100	x7966
507E	Breaking Good dfs and similar, dp, graphs, shortest paths	2100	x2924
507D	The Maths Lecture dp, implementation	2200	x1843
507C	Guess Your Way Out! implementation, math, trees	1700	x4384
507B	Amr and Pins geometry, math	1400	x24842
507A	Amr and Music greedy, implementation, sortings	1000	x18571
506E	Mr. Kitayuta's Gift combinatorics, dp, matrices, strings	3000	x760
506D	Mr. Kitayuta's Colorful Graph brute force, dfs and similar, dsu, graphs	2400	x2184
505E	Mr. Kitayuta vs. Bamboos binary search, greedy	2900	x1410
505D	Mr. Kitayuta's Technology dfs and similar	2200	x2551
505C	Mr. Kitayuta, the Treasure Hunter dfs and similar, dp, two pointers	1900	x6443
505B	Mr. Kitayuta's Colorful Graph dfs and similar, dp, dsu, graphs	1400	x13171
505A	Mr. Kitayuta's Gift brute force, implementation, strings	1100	x6692
504E	Misha and LCP on Tree binary search, dfs and similar, hashing, string suffix structures, trees	3000	x940
504D	Misha and XOR bitmasks	2700	x309
501E	Misha and Palindrome Degree binary search, combinatorics, implementation	2500	x919
501D	Misha and Permutations Summation data structures	2000	x2427
501C	Misha and Forest constructive algorithms, data structures, greedy, sortings, trees	1500	x5664
501B	Misha and Changing Handles data structures, dsu, strings	1100	x16648
501A	Contest implementation	900	x22881
500G	New Year Running number theory, trees	3200	x157
500F	New Year Shopping divide and conquer, dp	2700	x743
500E	New Year Domino data structures, dp, dsu	2300	x1447
500D	New Year Santa Network combinatorics, dfs and similar, graphs, trees	1900	x3128
500C	New Year Book Reading constructive algorithms, greedy, implementation, math	1600	x5829
500B	New Year Permutation dfs and similar, dsu, graphs, greedy, math, sortings	1600	x8912
500A	New Year Transportation dfs and similar, graphs, implementation	1000	x53747
499B	Lecture implementation, strings	1000	x39708
499A	Watching a movie greedy, implementation	1000	x13985
498E	Stairs and Lines dp, matrices	2700	x478
498D	Traffic Jams in the Land data structures, dp, number theory	2400	x1128
498C	Array and Operations flows, graph matchings, number theory	2100	x3500
498B	Name That Tune dp, probabilities, two pointers	2400	x1182
498A	Crazy Town geometry	1700	x6476
497E	Subsequences Return dp, matrices	2900	x285
497D	Gears brute force, geometry, math	2900	x231
496E	Distributing Parts greedy, sortings	2100	x1666
496D	Tennis Game binary search	1900	x3027
496C	Removing Columns brute force, constructive algorithms, implementation	1500	x7765
496B	Secret Combination brute force, constructive algorithms, implementation	1500	x5939
496A	Minimum Difficulty brute force, implementation, math	900	x16501
495B	Modular Equations math, number theory	1600	x7025
495A	Digital Counter implementation	1100	x8510
494E	Sharti data structures, games	3200	x321
494D	Birthday data structures, dfs and similar, dp, trees	2700	x530
494C	Helping People dp, probabilities	2600	x869
494B	Obsessive String dp, strings	2000	x2749
494A	Treasure greedy	1500	x6263
493E	Vasya and Polynomial math	2800	x485
493D	Vasya and Chess constructive algorithms, games, math	1700	x9715
493C	Vasya and Basketball binary search, brute force, data structures, implementation, sortings, two pointers	1600	x6841
493B	Vasya and Wrestling implementation	1400	x13384
493A	Vasya and Football implementation	1300	x6129
492E	Vanya and Field math	2000	x1633
492D	Vanya and Computer Game binary search, implementation, math, sortings	1800	x3175
492C	Vanya and Exams greedy, sortings	1400	x14174
492B	Vanya and Lanterns binary search, implementation, math, sortings	1200	x76693
492A	Vanya and Cubes implementation	800	x51346
491C	Deciphering flows, graph matchings	2300	x418
491B	New York Hotel greedy, math	2100	x569
491A	Up the hill constructive algorithms, implementation	1000	x2957
490F	Treeland Tour data structures, dfs and similar, dp, trees	2200	x1730
490E	Restoring Increasing Sequence binary search, brute force, greedy, implementation	2000	x1604
490D	Chocolate brute force, dfs and similar, math, meet-in-the-middle, number theory	1900	x2144
490C	Hacking Cypher brute force, math, number theory, strings	1700	x9107
490B	Queue dsu, implementation	1500	x6019
490A	Team Olympiad greedy, implementation, sortings	800	x60068
489F	Special Matrices combinatorics, dp	2100	x1674
489E	Hiking binary search, dp	2300	x1033
489D	Unbearable Controversy of Being brute force, combinatorics, dfs and similar, graphs	1700	x6708
489C	Given Length and Sum of Digits... dp, greedy, implementation	1400	x46608
489B	BerSU Ball dfs and similar, dp, graph matchings, greedy, sortings, two pointers	1200	x49525
489A	SwapSort greedy, implementation, sortings	1200	x10107
488B	Candy Boxes brute force, constructive algorithms, math	1900	x2126
488A	Giga Tower brute force	1100	x14322
487E	Tourists data structures, dfs and similar, graphs, trees	3200	x2381
487D	Conveyor Belts data structures	2700	x903
487C	Prefix Product Sequence constructive algorithms, math, number theory	2300	x2797
487B	Strip binary search, data structures, dp, two pointers	2000	x3564
487A	Fight the Monster binary search, brute force, implementation	1800	x3774
486E	LIS of Sequence data structures, dp, greedy, hashing, math	2200	x2287
486D	Valid Sets dfs and similar, dp, math, trees	2100	x4053
486C	Palindrome Transformation brute force, greedy, implementation	1700	x11777
486B	OR in Matrix greedy, hashing, implementation	1300	x17852
486A	Calculating Function implementation, math	800	x121155
485B	Valuable Resources brute force, greedy	1300	x6540
485A	Factory implementation, math, matrices	1400	x8318
484E	Sign on Fence binary search, constructive algorithms, data structures	2500	x2349
484D	Kindergarten data structures, dp, greedy	2400	x2661