Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 941 (Div. 1)
3 days
Register now »

*has extra registration

Before contest
Codeforces Round 941 (Div. 2)
3 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

sortings

Add tag

Problems

#	Name
811B	Vladik and Complicated Book implementation, sortings	1200	x6436
810B	Summer sell-off greedy, sortings	1300	x10846
809A	Do you want a date? implementation, math, sortings	1500	x4648
808C	Tea Party constructive algorithms, greedy, sortings	1400	x5952
807A	Is it rated? implementation, sortings	900	x19371
804D	Expected diameter of a tree binary search, brute force, dfs and similar, dp, sortings, trees	2500	x1256
802M	April Fools' Problem (easy) greedy, sortings	1200	x3013
798E	Mike and code of a permutation constructive algorithms, data structures, graphs, sortings	3000	x454
798D	Mike and distribution constructive algorithms, sortings	2400	x1836
797F	Mice and Holes data structures, dp, greedy, sortings	2600	x1079
794C	Naming Company games, greedy, sortings	1800	x3019
793C	Mice problem geometry, implementation, math, sortings	2300	x1230
792A	New Bus Route implementation, sortings	1100	x8718
785B	Anton and Classes greedy, sortings	1100	x10125
779C	Dishonest Sellers constructive algorithms, greedy, sortings	1200	x11614
778E	Selling Numbers dp, sortings	3000	x295
777E	Hanoi Factory brute force, data structures, dp, greedy, sortings	2000	x3853
777B	Game of Credit Cards data structures, dp, greedy, sortings	1300	x9326
774D	Lie or Truth *special problem, constructive algorithms, implementation, sortings	1500	x1903
773E	Blog Post Rating data structures, sortings	3000	x315
769A	Year of University Entrance *special problem, implementation, sortings	800	x5564
768C	Jon Snow and his Favourite Number brute force, dp, implementation, sortings	1800	x3769
768A	Oath of the Night's Watch constructive algorithms, sortings	900	x26042
767D	Cartons of milk binary search, data structures, greedy, sortings, two pointers	2100	x2189
766B	Mahmoud and a Triangle constructive algorithms, geometry, greedy, math, number theory, sortings	1000	x30974
762B	USB vs. PS/2 greedy, implementation, sortings, two pointers	1400	x7455
761D	Dasha and Very Difficult Problem binary search, brute force, constructive algorithms, greedy, sortings	1700	x3939
757C	Felicity is Coming! data structures, hashing, sortings, strings	1900	x2306
755B	PolandBall and Game binary search, data structures, games, greedy, sortings, strings	1100	x10904
754D	Fedor and coupons binary search, data structures, greedy, sortings	2100	x2132
747D	Winter Is Coming dp, greedy, sortings	1800	x2950
739E	Gosha is hunting brute force, data structures, dp, flows, math, probabilities, sortings	3000	x2043
735B	Urbanization greedy, number theory, sortings	1100	x8298
732E	Sockets greedy, sortings	2100	x1576
732D	Exams binary search, greedy, sortings	1700	x5400
731D	80-th Level Archeology brute force, data structures, greedy, sortings	2200	x1147
729E	Subordinates constructive algorithms, data structures, graphs, greedy, sortings	1900	x2132
729C	Road to Cinema binary search, greedy, sortings	1700	x3835
724C	Ray Tracing greedy, hashing, implementation, math, number theory, sortings	1800	x2103
723A	The New Year: Meeting Friends implementation, math, sortings	800	x70318
721B	Passwords implementation, math, sortings, strings	1100	x11964
720D	Slalom data structures, dp, sortings	3100	x222
717C	Potions Homework implementation, sortings	1200	x3862
714B	Filya and Homework implementation, sortings	1200	x13992
713C	Sonya and Problem Wihtout a Legend dp, sortings	2300	x4747
710B	Optimal Point on a Line brute force, sortings	1400	x8514
709B	Checkpoints greedy, implementation, sortings	1500	x4696
687D	Dividing Kingdom II brute force, data structures, dsu, graphs, sortings	2500	x849
686B	Little Robber Girl's Zoo constructive algorithms, implementation, sortings	1100	x7695
685D	Kay and Eternity brute force, implementation, sortings	2600	x477
682B	Alyona and Mex sortings	1200	x11079
681E	Runaway to a Shadow geometry, sortings	2500	x448
675C	Money Transfers constructive algorithms, data structures, greedy, sortings	2100	x3415
670C	Cinema implementation, sortings	1300	x8910
665F	Four Divisors data structures, dp, math, number theory, sortings, two pointers	2400	x576
659F	Polycarp and Hay dfs and similar, dsu, graphs, greedy, sortings	2000	x1748
659B	Qualifying Contest constructive algorithms, sortings	1300	x6176
653A	Bear and Three Balls brute force, implementation, sortings	900	x7991
652D	Nested Segments data structures, sortings	1800	x3782
652C	Foe Pairs combinatorics, sortings, two pointers	1800	x3066
652B	z-sort sortings	1000	x9810
651B	Beautiful Paintings greedy, sortings	1200	x11373
649E	Автобус binary search, data structures, greedy, sortings	2100	x103
649C	Печать условий constructive algorithms, greedy, sortings	1500	x439
648D	Собачки и миски data structures, greedy, sortings	1900	x221
648B	Собери стол constructive algorithms, sortings	800	x1197
644C	Hostname Aliases *special problem, binary search, data structures, implementation, sortings, strings	2100	x908
639E	Bear and Paradox binary search, greedy, math, sortings	2800	x565
639D	Bear and Contribution data structures, greedy, sortings, two pointers	2400	x778
637B	Chat Order *special problem, binary search, constructive algorithms, data structures, sortings	1200	x14972
633C	Spy Syndrome 2 data structures, dp, hashing, implementation, sortings, string suffix structures, strings	1900	x2595
632C	The Smallest String Concatenation sortings, strings	1700	x7175
631C	Report data structures, sortings	1700	x3681
624B	Making a String greedy, sortings	1100	x7840
622E	Ants in Leaves dfs and similar, greedy, sortings, trees	2200	x1972
613D	Kingdom and its Cities dfs and similar, divide and conquer, dp, graphs, sortings, trees	2800	x2644
613B	Skills binary search, brute force, dp, greedy, sortings, two pointers	1900	x2170
612D	The Union of k-Segments greedy, sortings	1800	x3662
611E	New Year and Three Musketeers data structures, greedy, sortings	2400	x853
609A	USB Flash Drives greedy, implementation, sortings	800	x16763
600B	Queries about less or equal elements binary search, data structures, sortings, two pointers	1300	x27258
599C	Day at the Beach sortings	1600	x4557
598C	Nearest vectors geometry, sortings	2300	x3939
597B	Restaurant dp, greedy, sortings	1600	x4629
596D	Wilbur and Trees dp, math, probabilities, sortings	2300	x672
596C	Wilbur and Points combinatorics, greedy, sortings	1700	x2233
593B	Anton and Lines geometry, sortings	1600	x3940
581C	Developing Skills implementation, math, sortings	1400	x7238
580B	Kefa and Company binary search, sortings, two pointers	1500	x24802
579B	Finding Team Member brute force, implementation, sortings	1300	x5181
576C	Points on Plane constructive algorithms, divide and conquer, geometry, greedy, sortings	2100	x3220
572B	Order Book data structures, greedy, implementation, sortings	1300	x6732
572A	Arrays sortings	900	x16236
571B	Minimization dp, greedy, sortings	2000	x2522
567D	One-Dimensional Battle Ships binary search, data structures, greedy, sortings	1700	x4640
560A	Currency System in Geraldion implementation, sortings	1000	x16803
559E	Gerald and Path dp, sortings	3000	x853
559B	Equivalent Strings divide and conquer, hashing, sortings, strings	1700	x10346
558E	A Simple Task data structures, sortings, strings	2300	x5558
558D	Guess Your Way Out! II data structures, implementation, sortings	2300	x1105