Problemset - Codeforces

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Educational Codeforces Round 173 (Rated for Div. 2)
44:22:17
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Problems

#	Name
96A	Football implementation, strings	900	x163217
95E	Lucky Country dp, dsu, graphs	2500	x1546
95D	Horse Races dp, math	2500	x429
95C	Volleyball shortest paths	1900	x2839
95B	Lucky Numbers dp, greedy	1800	x1255
95A	Hockey implementation, strings	1600	x1688
94B	Friends graphs, implementation, math	1300	x4725
94A	Restoring Password implementation, strings	900	x10739
93E	Lostborn dp, math, number theory	2600	x503
93D	Flags dp, math, matrices	2500	x357
93C	Azembler brute force, implementation	2500	x426
93B	End of Exams greedy	1900	x924
93A	Frames implementation	1700	x1968
92B	Binary Number greedy	1300	x4902
92A	Chips implementation, math	800	x19172
91E	Igloo Skyscraper data structures, geometry	2500	x611
91D	Grocer's Problem constructive algorithms, graphs, greedy	2600	x277
91C	Ski Base combinatorics, dsu, graphs	2300	x897
91B	Queue binary search, data structures	1500	x6898
91A	Newspaper Headline greedy, strings	1500	x3636
90B	African Crossword implementation, strings	1100	x5372
90A	Cableway greedy, math	1000	x4777
89E	Fire and Ice greedy	2900	x102
89D	Space mines geometry	2500	x241
89C	Chip Play brute force, data structures, implementation	2300	x625
89B	Widget Library dp, expression parsing, graphs, implementation	2300	x527
89A	Robbery greedy	1800	x1485
88B	Keyboard implementation	1500	x4748
88A	Chord brute force, implementation	1200	x3846
87E	Mogohu-Rea Idol geometry	2600	x611
87D	Beautiful Road dfs and similar, dp, dsu, graphs, implementation, sortings, trees	2300	x914
87C	Interesting Game dp, games, math	2000	x1399
87B	Vasya and Types implementation, strings	1800	x1156
87A	Trains implementation, math	1500	x5423
86E	Long sequence brute force, math, matrices	2700	x191
86D	Powerful array data structures, implementation, math, two pointers	2200	x14081
86C	Genetic engineering dp, string suffix structures, trees	2500	x734
86B	Tetris revisited constructive algorithms, graph matchings, greedy, math	2200	x417
86A	Reflection math	1600	x1432
85E	Guard Towers binary search, dsu, geometry, graphs, sortings	2600	x987
85D	Sum of Medians binary search, brute force, data structures, implementation	2300	x2063
85C	Petya and Tree binary search, dfs and similar, probabilities, sortings, trees	2200	x546
85B	Embassy Queue data structures, greedy	1800	x984
85A	Domino constructive algorithms, implementation	1300	x1801
84C	Biathlon binary search, implementation	1700	x1723
84A	Toy Army math, number theory	900	x15252
83E	Two Subsequences bitmasks, dp	2800	x482
83D	Numbers dp, math, number theory	2400	x894
83C	Track graphs, greedy, shortest paths	2400	x436
83B	Doctor binary search, math, sortings	1800	x1708
83A	Magical Array math	1300	x6305
82E	Corridor geometry	2600	x218
82D	Two out of Three dp	2000	x2070
82C	General Mobilization data structures, dfs and similar, sortings	2000	x813
82B	Sets constructive algorithms, hashing, implementation	1700	x2068
82A	Double Cola implementation, math	1100	x30490
81E	Pairs dfs and similar, dp, dsu, graphs, implementation, trees	2700	x354
81D	Polycarp's Picture Gallery constructive algorithms, greedy	2100	x656
81C	Average Score greedy, math, sortings	1700	x1674
81B	Sequence Formatting implementation, strings	1700	x1960
81A	Plug-in implementation	1400	x11191
80B	Depression geometry, math	1200	x4471
80A	Panoramix's Prediction brute force	800	x55197
79E	Security System math	2900	x138
79D	Password bitmasks, dp, shortest paths	2800	x1203
79C	Beaver data structures, dp, greedy, hashing, strings, two pointers	1800	x1821
79B	Colorful Field implementation, sortings	1400	x7349
79A	Bus Game greedy	1200	x4117
78E	Evacuation flows, graphs, shortest paths	2300	x594
78D	Archer's Shot binary search, geometry, math, two pointers	2300	x332
78C	Beaver Game dp, games, number theory	2000	x1896
78B	Easter Eggs constructive algorithms, implementation	1200	x13796
78A	Haiku implementation, strings	800	x13139
77E	Martian Food geometry	2800	x381
77D	Domino Carpet dp, implementation	2300	x332
77C	Beavermuncher-0xFF dfs and similar, dp, dsu, greedy, trees	2100	x1041
77B	Falling Anvils math, probabilities	1800	x2640
77A	Heroes brute force, implementation	1400	x1784
76F	Tourist binary search, data structures, dp	2300	x648
76E	Points implementation, math	1700	x1725
76D	Plus and xor dp, greedy, math	1700	x2085
76C	Mutation bitmasks, dp, math	2700	x317
76B	Mice greedy, two pointers	2100	x753
76A	Gift dsu, graphs, sortings, trees	2200	x1619
75E	Ship's Shortest Path geometry, shortest paths	2400	x280
75D	Big Maximum Sum data structures, dp, greedy, implementation, math, trees	2000	x1837
75C	Modified GCD binary search, number theory	1600	x13010
75B	Facetook Priority Wall expression parsing, implementation, strings	1500	x3332
75A	Life Without Zeros implementation	1000	x26534
74E	Shift It! constructive algorithms	2800	x155
74D	Hanger data structures	2400	x373
74C	Chessboard Billiard dfs and similar, dsu, graphs, number theory	2100	x1290
74B	Train dp, games, greedy	1500	x1554
74A	Room Leader implementation	1000	x5226
73F	Plane of Tanks brute force, geometry	2900	x81
73E	Morrowindows math, number theory	2400	x365
73D	FreeDiv dfs and similar, graphs, greedy	2200	x643
73C	LionAge II dp	1800	x2138
73B	Need For Brake binary search, greedy, sortings	2000	x510
73A	The Elder Trolls IV: Oblivon greedy, math	1600	x1380