Problemset - Codeforces

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Codeforces Round 976 (Div. 2) and Divide By Zero 9.0
11:59:13
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Problems

#	Name
95D	Horse Races dp, math	2500	x425
95C	Volleyball shortest paths	1900	x2778
95B	Lucky Numbers dp, greedy	1800	x1215
95A	Hockey implementation, strings	1600	x1668
93E	Lostborn dp, math, number theory	2600	x498
93D	Flags dp, math, matrices	2500	x347
93C	Azembler brute force, implementation	2500	x421
93B	End of Exams greedy	1900	x918
93A	Frames implementation	1700	x1945
91E	Igloo Skyscraper data structures, geometry	2500	x603
91D	Grocer's Problem constructive algorithms, graphs, greedy	2600	x270
91C	Ski Base combinatorics, dsu, graphs	2300	x878
91B	Queue binary search, data structures	1500	x6782
91A	Newspaper Headline greedy, strings	1500	x3586
89E	Fire and Ice greedy	2900	x99
89D	Space mines geometry	2500	x238
89C	Chip Play brute force, data structures, implementation	2300	x620
89B	Widget Library dp, expression parsing, graphs, implementation	2300	x523
89A	Robbery greedy	1800	x1476
88B	Keyboard implementation	1500	x4646
87E	Mogohu-Rea Idol geometry	2600	x583
87D	Beautiful Road dfs and similar, dp, dsu, graphs, implementation, sortings, trees	2300	x885
87C	Interesting Game dp, games, math	2000	x1352
87B	Vasya and Types implementation, strings	1800	x1147
87A	Trains implementation, math	1500	x5350
86E	Long sequence brute force, math, matrices	2700	x188
86D	Powerful array data structures, implementation, math, two pointers	2200	x13599
86C	Genetic engineering dp, string suffix structures, trees	2500	x717
86B	Tetris revisited constructive algorithms, graph matchings, greedy, math	2200	x411
86A	Reflection math	1600	x1377
85E	Guard Towers binary search, dsu, geometry, graphs, sortings	2600	x949
85D	Sum of Medians binary search, brute force, data structures, implementation	2300	x2032
85C	Petya and Tree binary search, dfs and similar, probabilities, sortings, trees	2200	x540
85B	Embassy Queue data structures, greedy	1800	x975
84C	Biathlon binary search, implementation	1700	x1703
83E	Two Subsequences bitmasks, dp	2800	x472
83D	Numbers dp, math, number theory	2400	x876
83C	Track graphs, greedy, shortest paths	2400	x426
83B	Doctor binary search, math, sortings	1800	x1692
82E	Corridor geometry	2600	x217
82D	Two out of Three dp	2000	x2020
82C	General Mobilization data structures, dfs and similar, sortings	2000	x806
82B	Sets constructive algorithms, hashing, implementation	1700	x2033
81E	Pairs dfs and similar, dp, dsu, graphs, implementation, trees	2700	x340
81D	Polycarp's Picture Gallery constructive algorithms, greedy	2100	x645
81C	Average Score greedy, math, sortings	1700	x1663
81B	Sequence Formatting implementation, strings	1700	x1952
81A	Plug-in implementation	1400	x10676
79E	Security System math	2900	x131
79D	Password bitmasks, dp, shortest paths	2800	x1129
79C	Beaver data structures, dp, greedy, hashing, strings, two pointers	1800	x1782
79B	Colorful Field implementation, sortings	1400	x7160
78E	Evacuation flows, graphs, shortest paths	2300	x540
78D	Archer's Shot binary search, geometry, math, two pointers	2300	x317
78C	Beaver Game dp, games, number theory	2000	x1871
77E	Martian Food geometry	2800	x377
77D	Domino Carpet dp, implementation	2300	x325
77C	Beavermuncher-0xFF dfs and similar, dp, dsu, greedy, trees	2100	x1005
77B	Falling Anvils math, probabilities	1800	x2616
77A	Heroes brute force, implementation	1400	x1774
76F	Tourist binary search, data structures, dp	2300	x631
76E	Points implementation, math	1700	x1710
76D	Plus and xor dp, greedy, math	1700	x2062
76C	Mutation bitmasks, dp, math	2700	x310
76B	Mice greedy, two pointers	2100	x749
76A	Gift dsu, graphs, sortings, trees	2200	x1581
75E	Ship's Shortest Path geometry, shortest paths	2400	x279
75D	Big Maximum Sum data structures, dp, greedy, implementation, math, trees	2000	x1796
75C	Modified GCD binary search, number theory	1600	x12619
75B	Facetook Priority Wall expression parsing, implementation, strings	1500	x3301
74E	Shift It! constructive algorithms	2800	x151
74D	Hanger data structures	2400	x369
74C	Chessboard Billiard dfs and similar, dsu, graphs, number theory	2100	x1282
74B	Train dp, games, greedy	1500	x1540
73F	Plane of Tanks brute force, geometry	2900	x80
73E	Morrowindows math, number theory	2400	x357
73D	FreeDiv dfs and similar, graphs, greedy	2200	x638
73C	LionAge II dp	1800	x2114
73B	Need For Brake binary search, greedy, sortings	2000	x499
73A	The Elder Trolls IV: Oblivon greedy, math	1600	x1337
72I	Goofy Numbers *special problem, implementation	1500	x462
72H	Reverse It! *special problem, implementation	1600	x264
72F	Oil *special problem, greedy, math	1900	x118
72E	Ali goes shopping *special problem, brute force, strings	1800	x153
72D	Perse-script *special problem, expression parsing	2300	x74
72B	INI-file *special problem, implementation	2200	x77
72A	Goshtasp, Vishtasp and Eidi *special problem, greedy, math	1800	x185
71E	Nuclear Fusion bitmasks, dp	2200	x715
71D	Solitaire brute force, implementation	2200	x641
71C	Round Table Knights dp, math, number theory	1600	x6470
70E	Information Reform dp, implementation, trees	2700	x492
70D	Professor's task data structures, geometry	2700	x987
70C	Lucky Tickets binary search, data structures, sortings, two pointers	2200	x573
70B	Text Messaging expression parsing, greedy, strings	1600	x1766
69E	Subsegments data structures, implementation	1800	x4341
69D	Dot dp, games	1900	x991
69C	Game implementation	2000	x584
68E	Contact geometry	2900	x71
68D	Half-decay tree data structures, divide and conquer, dp, math, probabilities	2500	x464
68C	Synchrophasotron brute force	2200	x309