Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2)
03:57:05
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
784B	Kids' Riddle *special problem	2000	x849
784A	Numbers Joke *special problem	1700	x3158
780H	Intranet of Buses binary search, geometry, implementation, two pointers	3100	x118
780G	Andryusha and Nervous Barriers data structures, dp	2700	x652
780F	Axel and Marston in Bitland bitmasks, dp, graphs, matrices	2400	x1032
780E	Underground Lab constructive algorithms, dfs and similar, graphs	2100	x2524
780D	Innokenty and a Football League 2-sat, graphs, greedy, implementation, shortest paths, strings	1900	x2853
778E	Selling Numbers dp, sortings	3000	x303
778D	Parquet Re-laying constructive algorithms	2700	x499
778C	Peterson Polyglot brute force, dfs and similar, dsu, hashing, strings, trees	2500	x872
778B	Bitwise Formula bitmasks, brute force, dfs and similar, expression parsing, implementation	1800	x2285
778A	String Game binary search, greedy, strings	1700	x11309
777E	Hanoi Factory brute force, data structures, dp, greedy, sortings	2000	x3940
777D	Cloud of Hashtags binary search, greedy, implementation, strings	1800	x4958
776G	Sherlock and the Encrypted Data bitmasks, combinatorics, dp	2900	x335
776F	Sherlock's bet to Moriarty constructive algorithms, data structures, divide and conquer, geometry, graphs, implementation, trees	2800	x426
776E	The Holmes Children math, number theory	2100	x2124
776D	The Door Problem 2-sat, dfs and similar, dsu, graphs	2000	x4935
776C	Molly's Chemicals binary search, brute force, data structures, implementation, math	1800	x5846
775A	University Schedule *special problem	2900
774L	Bars *special problem, binary search	2000	x328
774J	Stepan's Series *special problem, dp	2000	x356
774I	Composing Of String *special problem, dp	2300	x101
774H	Repairing Of String *special problem, constructive algorithms	2200	x255
774G	Perfectionist Arkadiy *special problem, number theory	2700	x175
774F	Pens And Days Of Week *special problem, binary search, number theory	2700	x105
774E	Big Number and Remainder *special problem, math, number theory	2300	x209
774B	Significant Cups *special problem, binary search, data structures, two pointers	2100	x217
774A	Amusement Park *special problem, ternary search	2100	x297
773F	Test Data Generation combinatorics, divide and conquer, dp, fft, math, number theory	3400	x186
773E	Blog Post Rating data structures, sortings	3000	x344
773D	Perishable Roads dp, graphs, shortest paths	2700	x583
773C	Prairie Partition binary search, constructive algorithms, greedy, math	2200	x944
773B	Dynamic Problem Scoring brute force, greedy	2000	x1145
773A	Success Rate binary search, math	1700	x4416
772E	Verifying Kingdom binary search, divide and conquer, interactive, trees	3200	x125
772D	Varying Kibibits bitmasks, dp	2700	x580
772C	Vulnerable Kerbals constructive algorithms, dp, graphs, math, number theory	2300	x1239
772B	Volatile Kite geometry	1800	x3151
772A	Voltage Keepsake binary search, math	1800	x4170
771F	Bear and Isomorphic Points geometry, two pointers	3300	x80
771E	Bear and Rectangle Strips dp, greedy	3000	x446
771D	Bear and Company dp	2500	x1170
771C	Bear and Tree Jumps dfs and similar, dp, trees	2100	x2914
769D	k-Interesting Pairs Of Integers *special problem, bitmasks, brute force, meet-in-the-middle	1700	x2263
769C	Cycle In Maze *special problem, dfs and similar, graphs, greedy, shortest paths	1700	x2187
768G	The Winds of Winter binary search, data structures	3300	x355
768F	Barrels and boxes brute force, combinatorics, math, number theory, probabilities	2300	x1008
768E	Game of Stones bitmasks, dp, games	2100	x2848
768D	Jon and Orbs dp, math, probabilities	2200	x2808
768C	Jon Snow and his Favourite Number brute force, dp, implementation, sortings	1800	x3778
767E	Change-free greedy	2400	x958
767D	Cartons of milk binary search, data structures, greedy, sortings, two pointers	2100	x2210
767C	Garland dfs and similar, graphs, greedy, trees	2000	x4058
767B	The Queue brute force, greedy	2100	x2116
766E	Mahmoud and a xor trip bitmasks, constructive algorithms, data structures, dfs and similar, dp, math, trees	2100	x2912
766D	Mahmoud and a Dictionary data structures, dfs and similar, dp, dsu, graphs	2000	x3318
766C	Mahmoud and a Message brute force, dp, greedy, strings	1700	x4355
765G	Math, math everywhere brute force, dp, math, meet-in-the-middle, number theory	3200	x84
765F	Souvenirs data structures	3100	x1944
765E	Tree Folding dfs and similar, dp, greedy, implementation, trees	2200	x1259
765D	Artsem and Saunders constructive algorithms, dsu, math	1700	x2457
763E	Timofey and our friends animals data structures, divide and conquer, dsu	2900	x483
763D	Timofey and a flat tree data structures, graphs, hashing, shortest paths, trees	2900	x528
763C	Timofey and remoduling brute force, implementation, math, number theory	2600	x706
763B	Timofey and rectangles constructive algorithms, geometry	2100	x2783
762F	Tree nesting combinatorics, graphs, trees	2800	x365
762E	Radio stations binary search, data structures	2200	x1325
762D	Maximum path dp, greedy, implementation	2300	x1365
762C	Two strings binary search, hashing, strings, two pointers	2100	x2407
761F	Dasha and Photos brute force, data structures, dp, implementation	2600	x408
761E	Dasha and Puzzle constructive algorithms, dfs and similar, graphs, greedy, trees	2000	x1969
761D	Dasha and Very Difficult Problem binary search, brute force, constructive algorithms, greedy, sortings	1700	x3951
758F	Geometrical Progression brute force, math, number theory	2400	x623
758E	Broken Tree dfs and similar, dp, graphs, greedy, trees	2600	x465
758D	Ability To Convert constructive algorithms, dp, greedy, math, strings	2000	x2695
758C	Unfair Poll binary search, constructive algorithms, implementation, math	1700	x3843
757G	Can Bash Save the Day? data structures, divide and conquer, graphs, trees	3400	x490
757F	Team Rocket Rises Again data structures, graphs, shortest paths	2800	x1135
757E	Bash Plays with Functions brute force, combinatorics, dp, number theory	2500	x1291
757D	Felicity's Big Secret Revealed bitmasks, dp	2200	x1342
757C	Felicity is Coming! data structures, hashing, sortings, strings	1900	x2323
756F	Long number expression parsing, math, number theory	3400	x91
756E	Byteland coins combinatorics, dp, math	3200	x158
756D	Bacterial Melee brute force, combinatorics, dp, string suffix structures	2400	x996
756C	Nikita and stack data structures	2200	x1317
756A	Pavel and barbecue constructive algorithms, dfs and similar	1700	x3004
755G	PolandBall and Many Other Balls combinatorics, divide and conquer, dp, fft, math, number theory	3200	x897
755F	PolandBall and Gifts bitmasks, dp, greedy	2600	x1301
755E	PolandBall and White-Red graph constructive algorithms, graphs, shortest paths	2400	x826
755D	PolandBall and Polygon data structures	2000	x2483
754E	Dasha and cyclic table bitmasks, brute force, fft, strings, trees	2600	x486
754D	Fedor and coupons binary search, data structures, greedy, sortings	2100	x2427
754C	Vladik and chat brute force, constructive algorithms, dp, implementation, strings	2200	x916
753C	Interactive Bulls and Cows (Hard) brute force, constructive algorithms, interactive	2500	x286
750H	New Year and Snowy Grid dfs and similar, dsu, graphs, interactive	3500	x190
750G	New Year and Binary Tree Paths bitmasks, brute force, combinatorics, dp	3200	x445
750F	New Year and Finding Roots constructive algorithms, implementation, interactive, trees	2800	x479
750E	New Year and Old Subsequence data structures, divide and conquer, dp, matrices	2600	x1525
750D	New Year and Fireworks brute force, data structures, dfs and similar, dp, implementation	1900	x3070