Problemset - Codeforces

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Educational Codeforces Round 167 (Rated for Div. 2)
29:10:57
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Problems

#	Name
80A	Panoramix's Prediction brute force	800	x50649
79E	Security System math	2900	x122
79D	Password bitmasks, dp, shortest paths	2800	x963
79C	Beaver data structures, dp, greedy, hashing, strings, two pointers	1800	x1740
79B	Colorful Field implementation, sortings	1400	x6904
79A	Bus Game greedy	1200	x3992
78E	Evacuation flows, graphs, shortest paths	2300	x530
78D	Archer's Shot binary search, geometry, math, two pointers	2300	x304
78C	Beaver Game dp, games, number theory	2000	x1822
78B	Easter Eggs constructive algorithms, implementation	1200	x12914
78A	Haiku implementation, strings	800	x12106
77E	Martian Food geometry	2800	x370
77D	Domino Carpet dp, implementation	2300	x316
77C	Beavermuncher-0xFF dfs and similar, dp, dsu, greedy, trees	2100	x981
77B	Falling Anvils math, probabilities	1800	x2558
77A	Heroes brute force, implementation	1400	x1751
76F	Tourist binary search, data structures, dp	2300	x611
76E	Points implementation, math	1700	x1668
76D	Plus and xor dp, greedy, math	1700	x2012
76C	Mutation bitmasks, dp, math	2700	x272
76B	Mice greedy, two pointers	2100	x545
76A	Gift dsu, graphs, sortings, trees	2200	x1488
75E	Ship's Shortest Path geometry, shortest paths	2400	x271
75D	Big Maximum Sum data structures, dp, greedy, implementation, math, trees	2000	x1755
75C	Modified GCD binary search, number theory	1600	x12189
75B	Facetook Priority Wall expression parsing, implementation, strings	1500	x3239
75A	Life Without Zeros implementation	1000	x25305
74E	Shift It! constructive algorithms	2800	x148
74D	Hanger data structures	2400	x364
74C	Chessboard Billiard dfs and similar, dsu, graphs, number theory	2100	x1023
74B	Train dp, games, greedy	1500	x1502
74A	Room Leader implementation	1000	x4980
73F	Plane of Tanks brute force, geometry	2900	x76
73E	Morrowindows math, number theory	2400	x324
73D	FreeDiv dfs and similar, graphs, greedy	2200	x619
73C	LionAge II dp	1800	x2072
73B	Need For Brake binary search, greedy, sortings	2000	x492
73A	The Elder Trolls IV: Oblivon greedy, math	1600	x1308
72I	Goofy Numbers *special problem, implementation	1500	x457
72H	Reverse It! *special problem, implementation	1600	x261
72G	Fibonacci army *special problem, dp	1000	x2066
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	x909
72B	INI-file *special problem, implementation	2200	x76
72A	Goshtasp, Vishtasp and Eidi *special problem, greedy, math	1800	x183
71E	Nuclear Fusion bitmasks, dp	2200	x687
71D	Solitaire brute force, implementation	2200	x610
71C	Round Table Knights dp, math, number theory	1600	x6288
71B	Progress Bar implementation, math	1300	x4401
71A	Way Too Long Words strings	800	x362015
70E	Information Reform dp, implementation, trees	2700	x481
70D	Professor's task data structures, geometry	2700	x967
70C	Lucky Tickets binary search, data structures, sortings, two pointers	2200	x562
70B	Text Messaging expression parsing, greedy, strings	1600	x1728
70A	Cookies math	1300	x3231
69E	Subsegments data structures, implementation	1800	x4051
69D	Dot dp, games	1900	x943
69C	Game implementation	2000	x570
69B	Bets greedy, implementation	1200	x3210
69A	Young Physicist implementation, math	1000	x157963
68E	Contact geometry	2900	x71
68D	Half-decay tree data structures, divide and conquer, dp, math, probabilities	2500	x452
68C	Synchrophasotron brute force	2200	x305
68B	Energy exchange binary search	1600	x4189
68A	Irrational problem implementation, number theory	1100	x4850
67E	Save the City! geometry	2500	x313
67D	Optical Experiment binary search, data structures, dp	1900	x1347
67C	Sequence of Balls dp	2600	x632
67B	Restoration of the Permutation greedy	1800	x757
67A	Partial Teacher dp, graphs, greedy, implementation	1800	x2071
66E	Petya and Post data structures, dp	2000	x687
66D	Petya and His Friends constructive algorithms, math, number theory	1700	x3076
66C	Petya and File System data structures, implementation	1800	x1001
66B	Petya and Countryside brute force, implementation	1100	x19774
66A	Petya and Java implementation, strings	1300	x6257
65E	Harry Potter and Moving Staircases dfs and similar, implementation	2900	x89
65D	Harry Potter and the Sorting Hat brute force, dfs and similar, hashing	2200	x421
65C	Harry Potter and the Golden Snitch binary search, geometry	2100	x773
65B	Harry Potter and the History of Magic brute force, greedy, implementation	1700	x1323
65A	Harry Potter and Three Spells implementation, math	1800	x1787
64I	Sort the Table *special problem, sortings	2400	x86
64H	Table Bowling *special problem, sortings	2300	x111
64G	Path Canonization *special problem	2200	x117
64F	Domain *special problem, expression parsing	2000	x177
64E	Prime Segment *special problem, brute force, math, number theory	1800	x236
64D	Presents *special problem, greedy	1800	x283
64C	Table *special problem, greedy, implementation, math	1600	x333
64B	Expression *special problem, expression parsing	1500	x1003
64A	Factorial *special problem, implementation	1300	x2730
63E	Sweets Game bitmasks, dfs and similar, dp, games, implementation	2000	x717
63D	Dividing Island constructive algorithms	1900	x1234
63C	Bulls and Cows brute force, implementation	1700	x1648
63B	Settlers' Training implementation	1200	x4739
63A	Sinking Ship implementation, sortings, strings	900	x11002
62E	World Evil dp, flows	2700	x227
62D	Wormhouse dfs and similar, graphs	2300	x350
62C	Inquisition geometry, implementation, sortings	2300	x248
62B	Tyndex.Brome binary search, implementation	1800	x1267