Problemset - Codeforces

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Educational Codeforces Round 166 (Rated for Div. 2)
41:17:11
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Problems

#	Name
1579B	Shifting Sort implementation, sortings	1100	x17854
1175A	From Hero to Zero implementation, math	900	x17853
1675C	Detective Task implementation	1100	x17811
1284A	New Year and Naming implementation, strings	800	x17779
1399D	Binary String To Subsequences constructive algorithms, data structures, greedy, implementation	1500	x17743
1281A	Suffix Three implementation	800	x17720
1253A	Single Push implementation	1000	x17680
538B	Quasi Binary constructive algorithms, dp, greedy, implementation	1400	x17655
365A	Good Number implementation	1100	x17554
1585A	Life of a Flower implementation	800	x17553
1863A	Channel greedy, implementation	800	x17529
1669G	Fall Down dfs and similar, implementation	1200	x17484
1138A	Sushi for Two binary search, greedy, implementation	900	x17469
1304B	Longest Palindrome brute force, constructive algorithms, greedy, implementation, strings	1100	x17463
1850F	We Were Both Children brute force, implementation, math, number theory	1300	x17445
1504B	Flip the Bits constructive algorithms, greedy, implementation, math	1200	x17430
1808A	Lucky Numbers brute force, implementation	900	x17403
999C	Alphabetic Removals implementation	1200	x17395
1637C	Andrew and Stones greedy, implementation	1200	x17389
1091A	New Year and the Christmas Ornament brute force, implementation, math	800	x17350
507A	Amr and Music greedy, implementation, sortings	1000	x17293
546B	Soldier and Badges brute force, greedy, implementation, sortings	1200	x17261
999B	Reversing Encryption implementation	900	x17179
1659A	Red Versus Blue constructive algorithms, greedy, implementation, math	1000	x17156
1679B	Stone Age Problem data structures, implementation	1200	x17149
1839A	The Good Array greedy, implementation, math	800	x17130
672B	Different is Good constructive algorithms, implementation, strings	1000	x17092
1922C	Closest Cities greedy, implementation, math	1300	x17058
1703E	Mirror Grid implementation	1200	x17057
1681C	Double Sort implementation, sortings	1200	x17033
486B	OR in Matrix greedy, hashing, implementation	1300	x17001
16B	Burglar and Matches greedy, implementation, sortings	900	x17000
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x16994
1480B	The Great Hero greedy, implementation, sortings	900	x16951
265B	Roadside Trees (Simplified Edition) greedy, implementation	1000	x16923
1969A	Two Friends constructive algorithms, implementation, math	800	x16882
166A	Rank List binary search, implementation, sortings	1100	x16867
1941D	Rudolf and the Ball Game dfs and similar, dp, implementation	1200	x16860
609A	USB Flash Drives greedy, implementation, sortings	800	x16858
560A	Currency System in Geraldion implementation, sortings	1000	x16854
1916C	Training Before the Olympiad constructive algorithms, games, greedy, implementation, math	1200	x16831
1750A	Indirect Sort constructive algorithms, implementation, math	800	x16830
1144B	Parity Alternated Deletions greedy, implementation, sortings	900	x16802
289B	Polo the Penguin and Matrix brute force, dp, implementation, sortings, ternary search	1400	x16800
918A	Eleven brute force, implementation	800	x16789
1890B	Qingshan Loves Strings constructive algorithms, implementation	800	x16750
1609A	Divide and Multiply greedy, implementation, math, number theory	900	x16721
1485B	Replace and Keep Sorted dp, implementation, math	1200	x16713
109A	Lucky Sum of Digits brute force, implementation	1000	x16706
615A	Bulbs implementation	800	x16660
165B	Burning Midnight Oil binary search, implementation	1500	x16621
1111A	Superhero Transformation implementation, strings	1000	x16591
462A	Appleman and Easy Task brute force, implementation	1000	x16584
816B	Karen and Coffee binary search, data structures, implementation	1400	x16572
1234B2	Social Network (hard version) data structures, implementation	1300	x16563
1657C	Bracket Sequence Deletion greedy, implementation	1200	x16560
1704B	Luke is a Foodie brute force, greedy, implementation	1000	x16549
1203A	Circle of Students implementation	1000	x16539
1133A	Middle of the Contest implementation	1000	x16511
1351B	Square? brute force, implementation, math	900	x16509
1139A	Even Substrings implementation, strings	800	x16473
1561A	Simply Strange Sort brute force, implementation, sortings	800	x16462
1650C	Weight of the System of Nested Segments greedy, hashing, implementation, sortings	1200	x16447
1605C	Dominant Character brute force, greedy, implementation, strings	1400	x16423
1689A	Lex String brute force, greedy, implementation, sortings, two pointers	800	x16405
1820A	Yura's New Name implementation, strings	800	x16401
1923B	Monsters Attack! dp, greedy, implementation	1100	x16400
1904A	Forked! brute force, implementation	900	x16378
1720C	Corners greedy, implementation	1200	x16372
573A	Bear and Poker implementation, math, number theory	1300	x16326
987A	Infinity Gauntlet implementation	800	x16309
186A	Comparing Strings implementation, strings	1100	x16292
1393B	Applejack and Storages constructive algorithms, data structures, greedy, implementation	1400	x16291
1762B	Make Array Good constructive algorithms, implementation, number theory, sortings	1100	x16290
361A	Levko and Table constructive algorithms, implementation	800	x16269
152A	Marks implementation	900	x16254
385A	Bear and Raspberry brute force, greedy, implementation	1000	x16246
1365D	Solve The Maze constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, shortest paths	1700	x16243
670D1	Magic Powder - 1 binary search, brute force, implementation	1400	x16237
1668A	Direction Change implementation, math	800	x16170
295A	Greg and Array data structures, implementation	1400	x16163
1136A	Nastya Is Reading a Book implementation	800	x16144
496A	Minimum Difficulty brute force, implementation, math	900	x16142
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16139
1796B	Asterisk-Minor Template implementation, strings	1000	x16087
1954B	Make It Ugly implementation, math	1200	x16075
764A	Taymyr is calling you brute force, implementation, math	800	x16062
551A	GukiZ and Contest brute force, implementation, sortings	800	x16044
350A	TL brute force, greedy, implementation	1200	x16016
1750B	Maximum Substring brute force, greedy, implementation	800	x15991
1092A	Uniform String implementation	800	x15985
1881C	Perfect Square brute force, implementation	1200	x15983
1419B	Stairs brute force, constructive algorithms, greedy, implementation, math	1200	x15980
1874A	Jellyfish and Game brute force, games, greedy, implementation	1200	x15965
1798B	Three Sevens brute force, data structures, greedy, implementation	1000	x15965
733A	Grasshopper And the String implementation	1000	x15958
202A	LLPS binary search, bitmasks, brute force, greedy, implementation, strings	800	x15944
1676F	Longest Strike data structures, greedy, implementation, sortings, two pointers	1300	x15938
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x15933
919A	Supermarket brute force, greedy, implementation	800	x15928