Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2)
21:55:34
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
85D	Sum of Medians binary search, brute force, data structures, implementation	2300	x1968
85C	Petya and Tree binary search, dfs and similar, probabilities, sortings, trees	2200	x524
85B	Embassy Queue data structures, greedy	1800	x963
84C	Biathlon binary search, implementation	1700	x1597
83E	Two Subsequences bitmasks, dp	2800	x465
83D	Numbers dp, math, number theory	2400	x840
83C	Track graphs, greedy, shortest paths	2400	x409
83B	Doctor binary search, math, sortings	1800	x1628
82E	Corridor geometry	2600	x217
82D	Two out of Three dp	2000	x1951
82C	General Mobilization data structures, dfs and similar, sortings	2000	x803
82B	Sets constructive algorithms, hashing, implementation	1700	x2022
81E	Pairs dfs and similar, dp, dsu, graphs, implementation, trees	2700	x331
81D	Polycarp's Picture Gallery constructive algorithms, greedy	2100	x641
81C	Average Score greedy, math, sortings	1700	x1642
81B	Sequence Formatting implementation, strings	1700	x1924
79E	Security System math	2900	x124
79D	Password bitmasks, dp, shortest paths	2800	x1052
79C	Beaver data structures, dp, greedy, hashing, strings, two pointers	1800	x1741
78E	Evacuation flows, graphs, shortest paths	2300	x531
78D	Archer's Shot binary search, geometry, math, two pointers	2300	x307
78C	Beaver Game dp, games, number theory	2000	x1828
77E	Martian Food geometry	2800	x370
77D	Domino Carpet dp, implementation	2300	x316
77C	Beavermuncher-0xFF dfs and similar, dp, dsu, greedy, trees	2100	x985
77B	Falling Anvils math, probabilities	1800	x2575
76F	Tourist binary search, data structures, dp	2300	x618
76E	Points implementation, math	1700	x1689
76D	Plus and xor dp, greedy, math	1700	x2030
76C	Mutation bitmasks, dp, math	2700	x305
76B	Mice greedy, two pointers	2100	x724
76A	Gift dsu, graphs, sortings, trees	2200	x1544
75E	Ship's Shortest Path geometry, shortest paths	2400	x272
75D	Big Maximum Sum data structures, dp, greedy, implementation, math, trees	2000	x1759
74E	Shift It! constructive algorithms	2800	x150
74D	Hanger data structures	2400	x366
74C	Chessboard Billiard dfs and similar, dsu, graphs, number theory	2100	x1220
73F	Plane of Tanks brute force, geometry	2900	x77
73E	Morrowindows math, number theory	2400	x329
73D	FreeDiv dfs and similar, graphs, greedy	2200	x622
73C	LionAge II dp	1800	x2078
73B	Need For Brake binary search, greedy, sortings	2000	x492
72F	Oil *special problem, greedy, math	1900	x117
72E	Ali goes shopping *special problem, brute force, strings	1800	x151
72D	Perse-script *special problem, expression parsing	2300	x73
72B	INI-file *special problem, implementation	2200	x76
72A	Goshtasp, Vishtasp and Eidi *special problem, greedy, math	1800	x183
71E	Nuclear Fusion bitmasks, dp	2200	x695
71D	Solitaire brute force, implementation	2200	x616
70E	Information Reform dp, implementation, trees	2700	x483
70D	Professor's task data structures, geometry	2700	x971
70C	Lucky Tickets binary search, data structures, sortings, two pointers	2200	x564
69E	Subsegments data structures, implementation	1800	x4176
69D	Dot dp, games	1900	x948
69C	Game implementation	2000	x577
68E	Contact geometry	2900	x71
68D	Half-decay tree data structures, divide and conquer, dp, math, probabilities	2500	x453
68C	Synchrophasotron brute force	2200	x305
67E	Save the City! geometry	2500	x315
67D	Optical Experiment binary search, data structures, dp	1900	x1364
67C	Sequence of Balls dp	2600	x668
67B	Restoration of the Permutation greedy	1800	x757
67A	Partial Teacher dp, graphs, greedy, implementation	1800	x2082
66E	Petya and Post data structures, dp	2000	x696
66D	Petya and His Friends constructive algorithms, math, number theory	1700	x3097
66C	Petya and File System data structures, implementation	1800	x1002
65E	Harry Potter and Moving Staircases dfs and similar, implementation	2900	x89
65D	Harry Potter and the Sorting Hat brute force, dfs and similar, hashing	2200	x422
65C	Harry Potter and the Golden Snitch binary search, geometry	2100	x774
65B	Harry Potter and the History of Magic brute force, greedy, implementation	1700	x1330
65A	Harry Potter and Three Spells implementation, math	1800	x1796
64I	Sort the Table *special problem, sortings	2400	x86
64H	Table Bowling *special problem, sortings	2300	x111
64G	Path Canonization *special problem	2200	x117
64F	Domain *special problem, expression parsing	2000	x178
64E	Prime Segment *special problem, brute force, math, number theory	1800	x236
64D	Presents *special problem, greedy	1800	x283
63E	Sweets Game bitmasks, dfs and similar, dp, games, implementation	2000	x719
63D	Dividing Island constructive algorithms	1900	x1241
63C	Bulls and Cows brute force, implementation	1700	x1656
62E	World Evil dp, flows	2700	x227
62D	Wormhouse dfs and similar, graphs	2300	x351
62C	Inquisition geometry, implementation, sortings	2300	x248
62B	Tyndex.Brome binary search, implementation	1800	x1269
61E	Enemy is weak data structures, trees	1900	x10518
61D	Eternal Victory dfs and similar, graphs, greedy, shortest paths, trees	1800	x6365
61C	Capture Valerian math	2000	x697
60E	Mushroom Gnomes math, matrices	2600	x321
60D	Savior brute force, dsu, math	2500	x402
60C	Mushroom Strife brute force, dfs and similar	2100	x558
59E	Shortest Path graphs, shortest paths	2000	x3229
59D	Team Arrangement constructive algorithms, greedy, implementation	2000	x610
58E	Expression dp	2400	x352
58D	Calendar greedy, strings	2000	x717
58C	Trees brute force	1800	x1987
57E	Chess math, shortest paths	3000	x256
57D	Journey dp, math	2500	x334
57C	Array combinatorics, math	1900	x2426
56E	Domino Principle binary search, data structures, sortings	2200	x2263
56D	Changing a String dp	2100	x1562