Problemset - Codeforces

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Codeforces Global Round 28
23:23:59
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Problems

#	Name
182C	Optimal Sum data structures, greedy	2000	x746
180D	Name greedy, strings	1900	x733
178E2	The Beaver's Problem - 2	2000	x232
178E1	The Beaver's Problem - 2	1900	x291
178D3	Magic Squares	2100	x250
178D2	Magic Squares	1900	x273
178C3	Smart Beaver and Resolving Collisions	2000	x328
178C2	Smart Beaver and Resolving Collisions	1900	x308
177E2	Space Voyage binary search	1900	x436
176C	Playing with Superglue combinatorics, constructive algorithms	2000	x485
173C	Spiral Maximum brute force, dp	1900	x996
171E	MYSTERIOUS LANGUAGE *special problem	2000	x1473
171C	A Piece of Cake *special problem, implementation	2000	x1099
166B	Polygons geometry, sortings	2100	x2541
165D	Beard Graph data structures, dsu, trees	2100	x1681
164B	Ancient Berland Hieroglyphs two pointers	2000	x476
163C	Conveyor sortings, two pointers	2100	x558
163B	Lemmings binary search	2000	x1068
162I	Truncatable primes *special problem	2000	x77
162G	Non-decimal sum *special problem	2000	x65
162D	Remove digits *special problem	1900	x228
158E	Phone Talks *special problem, dp, sortings	1900	x1464
156C	Cipher combinatorics, dp	2000	x2434
153E	Euclidean Distance *special problem	2100	x80
153D	Date Change *special problem	2000	x83
149D	Coloring Brackets dp	1900	x3933
148E	Porcelain dp	1900	x4118
145C	Lucky Subsequence combinatorics, dp, math	2100	x1916
144D	Missile Silos data structures, dfs and similar, graphs, shortest paths	1900	x4060
138B	Digits Permutations greedy	1900	x1039
137E	Last Chance data structures, implementation, strings	2000	x1249
137D	Palindromes dp, strings	1900	x1528
135C	Zero-One constructive algorithms, games, greedy	1900	x1351
134B	Pairs of Numbers brute force, dfs and similar, math, number theory	1900	x2061
132D	Constants in the language of Shakespeare constructive algorithms, dp, greedy	2100	x618
132B	Piet implementation	2100	x663
131F	Present to Mom binary search, two pointers	2000	x652
128D	Numbers constructive algorithms, implementation	2000	x1151
128C	Games with Rectangle combinatorics, dp	2000	x2993
128B	String brute force, constructive algorithms, hashing, implementation, string suffix structures, strings	2100	x2612
126C	E-reader Display constructive algorithms, greedy	2000	x744
126A	Hot Bath binary search, brute force, math	1900	x1437
121C	Lucky Permutation brute force, combinatorics, number theory	1900	x1289
120J	Minimum Sum divide and conquer, geometry, sortings	1900	x939
119C	Education Reform dp	2000	x960
119B	Before Exam constructive algorithms, implementation, sortings	1900	x1080
118E	Bertown roads dfs and similar, graphs	2000	x6829
118C	Fancy Number brute force, greedy, sortings, strings	1900	x2611
117C	Cycle dfs and similar, graphs	2000	x2669
113B	Petr# brute force, data structures, hashing, strings	2000	x2842
111C	Petya and Spiders bitmasks, dp, dsu	2100	x1395
111B	Petya and Divisors binary search, data structures, number theory	1900	x3712
109D	Lucky Sorting constructive algorithms, sortings	2000	x815
109C	Lucky Tree dp, dsu, trees	1900	x3640
109B	Lucky Probability brute force, probabilities	1900	x1558
106E	Space Rescuers geometry, ternary search	2100	x877
103D	Time to Raid Cowavans brute force, data structures, sortings	2100	x2140
103C	Russian Roulette constructive algorithms, greedy	1900	x963
101C	Vectors implementation, math	2000	x707
100H	Battleship *special problem, dfs and similar, implementation	2100	x81
95C	Volleyball shortest paths	1900	x2832
93B	End of Exams greedy	1900	x923
87C	Interesting Game dp, games, math	2000	x1399
82D	Two out of Three dp	2000	x2052
82C	General Mobilization data structures, dfs and similar, sortings	2000	x813
81D	Polycarp's Picture Gallery constructive algorithms, greedy	2100	x656
78C	Beaver Game dp, games, number theory	2000	x1896
77C	Beavermuncher-0xFF dfs and similar, dp, dsu, greedy, trees	2100	x1040
76B	Mice greedy, two pointers	2100	x753
75D	Big Maximum Sum data structures, dp, greedy, implementation, math, trees	2000	x1836
74C	Chessboard Billiard dfs and similar, dsu, graphs, number theory	2100	x1290
73B	Need For Brake binary search, greedy, sortings	2000	x507
72F	Oil *special problem, greedy, math	1900	x120
69D	Dot dp, games	1900	x1015
69C	Game implementation	2000	x594
67D	Optical Experiment binary search, data structures, dp	1900	x1499
66E	Petya and Post data structures, dp	2000	x766
65C	Harry Potter and the Golden Snitch binary search, geometry	2100	x789
64F	Domain *special problem, expression parsing	2000	x182
63E	Sweets Game bitmasks, dfs and similar, dp, games, implementation	2000	x768
63D	Dividing Island constructive algorithms	1900	x1270
61E	Enemy is weak data structures, trees	1900	x11515
61C	Capture Valerian math	2000	x721
60C	Mushroom Strife brute force, dfs and similar	2100	x569
59E	Shortest Path graphs, shortest paths	2000	x3592
59D	Team Arrangement constructive algorithms, greedy, implementation	2000	x639
58D	Calendar greedy, strings	2000	x736
57C	Array combinatorics, math	1900	x2724
56D	Changing a String dp	2100	x1655
55C	Pie or die games	1900	x1662
54D	Writing a Song brute force, dp, strings	2100	x551
54C	First Digit Law dp, math, probabilities	2000	x1355
50D	Bombing binary search, dp, probabilities	2100	x639
50C	Happy Farm 5 geometry	2000	x774
48E	Ivan the Fool VS Gorynych the Dragon dp, games, graphs	2100	x594
47C	Crossword implementation	2000	x791
46E	Comb data structures, dp	1900	x965
45H	Road Problem graphs	2100	x194
45E	Director constructive algorithms, greedy	2000	x552
45D	Event Dates greedy, meet-in-the-middle, sortings	1900	x1706