Problemset - Codeforces

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Educational Codeforces Round 167 (Rated for Div. 2)
18:51:31
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Problems

#	Name
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	x6290
71B	Progress Bar implementation, math	1300	x4401
71A	Way Too Long Words strings	800	x362102
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	x3211
69A	Young Physicist implementation, math	1000	x157997
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	x4191
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	x19779
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	x4740
63A	Sinking Ship implementation, sortings, strings	900	x11004
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
62A	A Student's Dream greedy, math	1300	x3392
61E	Enemy is weak data structures, trees	1900	x10390
61D	Eternal Victory dfs and similar, graphs, greedy, shortest paths, trees	1800	x6315
61C	Capture Valerian math	2000	x696
61B	Hard Work strings	1300	x3805
61A	Ultra-Fast Mathematician implementation	800	x105694
60E	Mushroom Gnomes math, matrices	2600	x319
60D	Savior brute force, dsu, math	2500	x401
60C	Mushroom Strife brute force, dfs and similar	2100	x553
60B	Serial Time! dfs and similar, dsu	1400	x4490
60A	Where Are My Flakes? implementation, two pointers	1300	x3551
59E	Shortest Path graphs, shortest paths	2000	x3189
59D	Team Arrangement constructive algorithms, greedy, implementation	2000	x608
59C	Title expression parsing	1600	x2024
59B	Fortune Telling implementation, number theory	1200	x6752
59A	Word implementation, strings	800	x165899
58E	Expression dp	2400	x349
58D	Calendar greedy, strings	2000	x715
58C	Trees brute force	1800	x1981
58B	Coins greedy	1300	x11943
58A	Chat room greedy, strings	1000	x124470
57E	Chess math, shortest paths	3000	x254
57D	Journey dp, math	2500	x333
57C	Array combinatorics, math	1900	x2397
57B	Martian Architecture implementation	1600	x995
57A	Square Earth? dfs and similar, greedy, implementation	1300	x2826
56E	Domino Principle binary search, data structures, sortings	2200	x2254
56D	Changing a String dp	2100	x1554
56C	Corporation Mail data structures, expression parsing, implementation	1700	x1127
56B	Spoilt Permutation implementation	1300	x3649
56A	Bar implementation	1000	x8399
55E	Very simple problem geometry, two pointers	2500	x680
55D	Beautiful numbers dp, number theory	2500	x3662
55C	Pie or die games	1900	x1603
55B	Smallest number brute force	1600	x2663
55A	Flea travel implementation, math	1200	x3354
54E	Vacuum Сleaner geometry	2700	x188
54D	Writing a Song brute force, dp, strings	2100	x517
54C	First Digit Law dp, math, probabilities	2000	x1254
54B	Cutting Jigsaw Puzzle hashing, implementation	1800	x744
54A	Presents implementation	1300	x2024
53E	Dead Ends bitmasks, dp	2500	x919
53D	Physical Education sortings	1500	x1966
53C	Little Frog constructive algorithms	1200	x6319
53B	Blog Photo binary search, implementation	1700	x1383