Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 950 (Div. 3)
2 days
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
92A	Chips implementation, math	800	x18277
91E	Igloo Skyscraper data structures, geometry	2500	x587
91D	Grocer's Problem constructive algorithms, graphs, greedy	2600	x262
91C	Ski Base combinatorics, dsu, graphs	2300	x864
91B	Queue binary search, data structures	1500	x6561
91A	Newspaper Headline greedy, strings	1500	x3504
90B	African Crossword implementation, strings	1100	x5180
90A	Cableway greedy, math	1000	x4528
89E	Fire and Ice greedy	2900	x98
89D	Space mines geometry	2500	x229
89C	Chip Play brute force, data structures, implementation	2300	x610
89B	Widget Library dp, expression parsing, graphs, implementation	2300	x511
89A	Robbery greedy	1800	x1457
88B	Keyboard implementation	1500	x4394
88A	Chord brute force, implementation	1200	x3747
87E	Mogohu-Rea Idol geometry	2600	x552
87D	Beautiful Road dfs and similar, dp, dsu, graphs, implementation, sortings, trees	2300	x853
87C	Interesting Game dp, games, math	2000	x1311
87B	Vasya and Types implementation, strings	1800	x1117
87A	Trains implementation, math	1500	x5202
86E	Long sequence brute force, math, matrices	2700	x180
86D	Powerful array data structures, implementation, math, two pointers	2200	x12657
86C	Genetic engineering dp, string suffix structures, trees	2500	x687
86B	Tetris revisited constructive algorithms, graph matchings, greedy, math	2200	x402
86A	Reflection math	1600	x1343
85E	Guard Towers binary search, dsu, geometry, graphs, sortings	2600	x921
85D	Sum of Medians binary search, brute force, data structures, implementation	2300	x1918
85C	Petya and Tree binary search, dfs and similar, probabilities, sortings, trees	2200	x523
85B	Embassy Queue data structures, greedy	1800	x959
85A	Domino constructive algorithms, implementation	1300	x1765
84C	Biathlon binary search, implementation	1700	x1591
84A	Toy Army math, number theory	900	x14628
83E	Two Subsequences bitmasks, dp	2800	x459
83D	Numbers dp, math, number theory	2400	x825
83C	Track graphs, greedy, shortest paths	2400	x403
83B	Doctor binary search, math, sortings	1800	x1618
83A	Magical Array math	1300	x6096
82E	Corridor geometry	2600	x217
82D	Two out of Three dp	2000	x1928
82C	General Mobilization data structures, dfs and similar, sortings	2000	x800
82B	Sets constructive algorithms, hashing, implementation	1700	x2019
82A	Double Cola implementation, math	1100	x29563
81E	Pairs dfs and similar, dp, dsu, graphs, implementation, trees	2700	x329
81D	Polycarp's Picture Gallery constructive algorithms, greedy	2100	x634
81C	Average Score greedy, math, sortings	1700	x1633
81B	Sequence Formatting implementation, strings	1700	x1879
81A	Plug-in implementation	1400	x10248
80B	Depression geometry, math	1200	x4234
80A	Panoramix's Prediction brute force	800	x50088
79E	Security System math	2900	x122
79D	Password bitmasks, dp, shortest paths	2800	x957
79C	Beaver data structures, dp, greedy, hashing, strings, two pointers	1800	x1726
79B	Colorful Field implementation, sortings	1400	x6856
79A	Bus Game greedy	1200	x3984
78E	Evacuation flows, graphs, shortest paths	2300	x530
78D	Archer's Shot binary search, geometry, math, two pointers	2300	x303
78C	Beaver Game dp, games, number theory	2000	x1808
78B	Easter Eggs constructive algorithms, implementation	1200	x12810
78A	Haiku implementation, strings	800	x12024
77E	Martian Food geometry	2800	x364
77D	Domino Carpet dp, implementation	2300	x311
77C	Beavermuncher-0xFF dfs and similar, dp, dsu, greedy, trees	2100	x978
77B	Falling Anvils math, probabilities	1800	x2553
77A	Heroes brute force, implementation	1400	x1750
76F	Tourist binary search, data structures, dp	2300	x609
76E	Points implementation, math	1700	x1662
76D	Plus and xor dp, greedy, math	1700	x2005
76C	Mutation bitmasks, dp, math	2700	x271
76B	Mice greedy, two pointers	2100	x511
76A	Gift dsu, graphs, sortings, trees	2200	x1456
75E	Ship's Shortest Path geometry, shortest paths	2400	x271
75D	Big Maximum Sum data structures, dp, greedy, implementation, math, trees	2000	x1744
75C	Modified GCD binary search, number theory	1600	x12073
75B	Facetook Priority Wall expression parsing, implementation, strings	1500	x3226
75A	Life Without Zeros implementation	1000	x25125
74E	Shift It! constructive algorithms	2800	x143
74D	Hanger data structures	2400	x361
74C	Chessboard Billiard dfs and similar, dsu, graphs, number theory	2100	x951
74B	Train dp, games, greedy	1500	x1497
74A	Room Leader implementation	1000	x4951
73F	Plane of Tanks brute force, geometry	2900	x76
73E	Morrowindows math, number theory	2400	x324
73D	FreeDiv dfs and similar, graphs, greedy	2200	x616
73C	LionAge II dp	1800	x2063
73B	Need For Brake binary search, greedy, sortings	2000	x490
73A	The Elder Trolls IV: Oblivon greedy, math	1600	x1299
72I	Goofy Numbers *special problem, implementation	1500	x457
72H	Reverse It! *special problem, implementation	1600	x260
72G	Fibonacci army *special problem, dp	1000	x2055
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
72C	Extraordinarily Nice Numbers *special problem, math	1200	x906
72B	INI-file *special problem, implementation	2200	x76
72A	Goshtasp, Vishtasp and Eidi *special problem, greedy, math	1800	x182
71E	Nuclear Fusion bitmasks, dp	2200	x678
71D	Solitaire brute force, implementation	2200	x608
71C	Round Table Knights dp, math, number theory	1600	x6260
71B	Progress Bar implementation, math	1300	x4382
71A	Way Too Long Words strings	800	x357686