Problemset - Codeforces

→ Pay attention

Before contest
CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
3 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
513E2	Subarray Cuts dp	2700	x594
513E1	Subarray Cuts dp	2600	x493
513D2	Constrained Tree constructive algorithms, data structures	2600	x384
513D1	Constrained Tree dfs and similar	2400	x621
513C	Second price auction bitmasks, probabilities	2000	x1563
513B2	Permutations bitmasks, divide and conquer, math	1800	x2639
512E	Fox And Polygon constructive algorithms, divide and conquer	2900	x522
512D	Fox And Travelling dp, trees	2900	x980
510E	Fox And Dinner flows	2300	x2209
510D	Fox And Jumping bitmasks, brute force, dp, math	1900	x5614
510C	Fox And Names dfs and similar, graphs, sortings	1600	x16532
509F	Progress Monitoring dp, trees	2300	x1076
509E	Pretty Song math, strings	2000	x1802
509D	Restoring Numbers constructive algorithms, math	2200	x760
509C	Sums of Digits dp, greedy, implementation	2000	x2101
508E	Arthur and Brackets dp, greedy	2200	x1762
508D	Tanya and Password dfs and similar, graphs	2500	x3441
508C	Anya and Ghosts constructive algorithms, greedy	1600	x4474
507E	Breaking Good dfs and similar, dp, graphs, shortest paths	2100	x2922
507D	The Maths Lecture dp, implementation	2200	x1832
507C	Guess Your Way Out! implementation, math, trees	1700	x4357
506E	Mr. Kitayuta's Gift combinatorics, dp, matrices, strings	3000	x756
506D	Mr. Kitayuta's Colorful Graph brute force, dfs and similar, dsu, graphs	2400	x2181
505E	Mr. Kitayuta vs. Bamboos binary search, greedy	2900	x1408
505D	Mr. Kitayuta's Technology dfs and similar	2200	x2544
505C	Mr. Kitayuta, the Treasure Hunter dfs and similar, dp, two pointers	1900	x6426
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	x918
501D	Misha and Permutations Summation data structures	2000	x2425
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	x3127
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	x8905
498E	Stairs and Lines dp, matrices	2700	x478
498D	Traffic Jams in the Land data structures, dp, number theory	2400	x1126
498C	Array and Operations flows, graph matchings, number theory	2100	x3492
498B	Name That Tune dp, probabilities, two pointers	2400	x1181
498A	Crazy Town geometry	1700	x6475
497E	Subsequences Return dp, matrices	2900	x285
497D	Gears brute force, geometry, math	2900	x231
496E	Distributing Parts greedy, sortings	2100	x1664
496D	Tennis Game binary search	1900	x3024
495B	Modular Equations math, number theory	1600	x7014
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	x2748
493E	Vasya and Polynomial math	2800	x485
493D	Vasya and Chess constructive algorithms, games, math	1700	x9714
493C	Vasya and Basketball binary search, brute force, data structures, implementation, sortings, two pointers	1600	x6837
492E	Vanya and Field math	2000	x1631
492D	Vanya and Computer Game binary search, implementation, math, sortings	1800	x3159
491C	Deciphering flows, graph matchings	2300	x418
491B	New York Hotel greedy, math	2100	x568
490F	Treeland Tour data structures, dfs and similar, dp, trees	2200	x1728
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	x9104
489F	Special Matrices combinatorics, dp	2100	x1673
489E	Hiking binary search, dp	2300	x1033
489D	Unbearable Controversy of Being brute force, combinatorics, dfs and similar, graphs	1700	x6707
488B	Candy Boxes brute force, constructive algorithms, math	1900	x2126
487E	Tourists data structures, dfs and similar, graphs, trees	3200	x2380
487D	Conveyor Belts data structures	2700	x902
487C	Prefix Product Sequence constructive algorithms, math, number theory	2300	x2794
487B	Strip binary search, data structures, dp, two pointers	2000	x3552
487A	Fight the Monster binary search, brute force, implementation	1800	x3774
486E	LIS of Sequence data structures, dp, greedy, hashing, math	2200	x2282
486D	Valid Sets dfs and similar, dp, math, trees	2100	x4050
486C	Palindrome Transformation brute force, greedy, implementation	1700	x11772
484E	Sign on Fence binary search, constructive algorithms, data structures	2500	x2346
484D	Kindergarten data structures, dp, greedy	2400	x2646
484C	Strange Sorting implementation, math	2600	x594
484B	Maximum Value binary search, math, sortings, two pointers	2100	x7078
484A	Bits bitmasks, constructive algorithms	1700	x11473
483B	Friends and Presents binary search, math	1800	x4093
482E	ELCA data structures, trees	3200	x177
482D	Random Function and Tree combinatorics, dp, trees	2700	x536
482C	Game with Strings bitmasks, dp, probabilities	2600	x935
482B	Interesting Array constructive algorithms, data structures, trees	1800	x6574
480E	Parking Lot data structures, divide and conquer	2800	x569
480D	Parcels dp, graphs	2600	x460
479E	Riding in a Lift combinatorics, dp	1900	x5169
479D	Long Jumps binary search, greedy, implementation	1700	x4795
478E	Wavy numbers brute force, dfs and similar, meet-in-the-middle, sortings	2900	x221
478D	Red-Green Towers dp	2000	x6051
478C	Table Decorations greedy	1800	x18367
477E	Dreamoon and Notepad data structures	3100	x135
477D	Dreamoon and Binary dp, strings	2700	x527
476E	Dreamoon and Strings dp, strings	2200	x1972
476D	Dreamoon and Sets constructive algorithms, greedy, math	1900	x4688
476C	Dreamoon and Sums math	1600	x5750
475F	Meta-universe data structures	2900	x230
475E	Strongly Connected City 2 dfs and similar	2700	x413
475D	CGCDSSQ brute force, data structures, math	2000	x4982
475C	Kamal-ol-molk's Painting brute force, constructive algorithms, greedy	2100	x786
474F	Ant colony data structures, math, number theory	2100	x8827