Problemset - Codeforces

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Educational Codeforces Round 167 (Rated for Div. 2)
37:59:46
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Problems

#	Name
105B	Dark Assembly brute force, probabilities	1800	x803
105A	Transmigration implementation	1700	x1816
104A	Blackjack implementation	800	x15030
103E	Buying Sets flows, graph matchings	2900	x828
103D	Time to Raid Cowavans brute force, data structures, sortings	2100	x2002
103C	Russian Roulette constructive algorithms, greedy	1900	x939
103B	Cthulhu dfs and similar, dsu, graphs	1500	x8599
103A	Testing Pants for Sadness greedy, implementation, math	1100	x5901
102B	Sum of Digits implementation	1000	x25107
102A	Clothes brute force	1200	x2943
101E	Candies and Stones divide and conquer, dp	2500	x480
101D	Castle dp, greedy, probabilities, sortings, trees	2300	x672
101C	Vectors implementation, math	2000	x688
101B	Buses binary search, data structures, dp	1700	x2517
101A	Homework greedy	1200	x3732
100J	Interval Coloring *special problem, greedy, math	2400	x61
100I	Rotation *special problem, geometry, math	1500	x342
100H	Battleship *special problem, dfs and similar, implementation	2100	x75
100G	Name the album *special problem, data structures, implementation	1800	x110
100F	Polynom *special problem, implementation	1800	x133
100E	Lamps in a Line *special problem, math	1600	x268
100D	World of Mouth *special problem, strings	1500	x298
100C	A+B *special problem, implementation	1400	x518
100B	Friendly Numbers *special problem, implementation	1500	x537
100A	Carpeting the Room *special problem, implementation	1100	x895
99B	Help Chef Gerasim implementation, sortings	1300	x2914
99A	Help Far Away Kingdom strings	800	x6564
98E	Help Shrek and Donkey dp, games, math, probabilities	2700	x459
98D	Help Monks constructive algorithms	2500	x181
98C	Help Greg the Dwarf geometry, ternary search	2500	x302
98B	Help King implementation, probabilities, trees	2200	x117
98A	Help Victoria the Wise brute force, implementation	1700	x1173
97E	Leaders dfs and similar, dsu, graphs, trees	2200	x373
97D	Robot in Basement bitmasks, brute force, implementation	2700	x242
97C	Winning Strategy binary search, graphs, math, shortest paths	2400	x300
97B	Superset constructive algorithms, divide and conquer	2300	x808
97A	Domino brute force, implementation	2400	x254
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1300	x14723
96A	Football implementation, strings	900	x151764
95E	Lucky Country dp, dsu, graphs	2500	x1411
95D	Horse Races dp, math	2500	x419
95C	Volleyball shortest paths	1900	x2714
95B	Lucky Numbers dp, greedy	1800	x1184
95A	Hockey implementation, strings	1600	x1649
94B	Friends graphs, implementation, math	1300	x4534
94A	Restoring Password implementation, strings	900	x10242
93E	Lostborn dp, math, number theory	2600	x439
93D	Flags dp, math, matrices	2500	x336
93C	Azembler brute force, implementation	2500	x412
93B	End of Exams greedy	1900	x906
93A	Frames implementation	1700	x1915
92B	Binary Number greedy	1300	x4731
92A	Chips implementation, math	800	x18386
91E	Igloo Skyscraper data structures, geometry	2500	x587
91D	Grocer's Problem constructive algorithms, graphs, greedy	2600	x264
91C	Ski Base combinatorics, dsu, graphs	2300	x868
91B	Queue binary search, data structures	1500	x6602
91A	Newspaper Headline greedy, strings	1500	x3518
90B	African Crossword implementation, strings	1100	x5200
90A	Cableway greedy, math	1000	x4549
89E	Fire and Ice greedy	2900	x99
89D	Space mines geometry	2500	x231
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	x4433
88A	Chord brute force, implementation	1200	x3760
87E	Mogohu-Rea Idol geometry	2600	x555
87D	Beautiful Road dfs and similar, dp, dsu, graphs, implementation, sortings, trees	2300	x857
87C	Interesting Game dp, games, math	2000	x1313
87B	Vasya and Types implementation, strings	1800	x1119
87A	Trains implementation, math	1500	x5226
86E	Long sequence brute force, math, matrices	2700	x180
86D	Powerful array data structures, implementation, math, two pointers	2200	x12951
86C	Genetic engineering dp, string suffix structures, trees	2500	x688
86B	Tetris revisited constructive algorithms, graph matchings, greedy, math	2200	x402
86A	Reflection math	1600	x1347
85E	Guard Towers binary search, dsu, geometry, graphs, sortings	2600	x929
85D	Sum of Medians binary search, brute force, data structures, implementation	2300	x1930
85C	Petya and Tree binary search, dfs and similar, probabilities, sortings, trees	2200	x523
85B	Embassy Queue data structures, greedy	1800	x962
85A	Domino constructive algorithms, implementation	1300	x1770
84C	Biathlon binary search, implementation	1700	x1593
84A	Toy Army math, number theory	900	x14679
83E	Two Subsequences bitmasks, dp	2800	x462
83D	Numbers dp, math, number theory	2400	x833
83C	Track graphs, greedy, shortest paths	2400	x408
83B	Doctor binary search, math, sortings	1800	x1627
83A	Magical Array math	1300	x6128
82E	Corridor geometry	2600	x217
82D	Two out of Three dp	2000	x1939
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	x29678
81E	Pairs dfs and similar, dp, dsu, graphs, implementation, trees	2700	x330
81D	Polycarp's Picture Gallery constructive algorithms, greedy	2100	x640
81C	Average Score greedy, math, sortings	1700	x1638
81B	Sequence Formatting implementation, strings	1700	x1881
81A	Plug-in implementation	1400	x10337
80B	Depression geometry, math	1200	x4247