Problemset - Codeforces

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Codeforces Round 940 (Div. 2) and CodeCraft-23
43:09:18
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Problems

#	Name
1421C	Palindromifier constructive algorithms, strings	1400	x12460
1670B	Dorms War brute force, implementation, strings	1100	x12392
735A	Ostap and Grasshopper implementation, strings	800	x12271
1537E1	Erase and Extend (Easy Version) binary search, brute force, dp, greedy, hashing, implementation, string suffix structures, strings, two pointers	1600	x12194
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x12106
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x12065
1029A	Many Equal Substrings implementation, strings	1300	x11982
721B	Passwords implementation, math, sortings, strings	1100	x11960
1800E2	Unforgivable Curse (hard version) brute force, constructive algorithms, dfs and similar, dsu, graphs, greedy, strings	1500	x11950
78A	Haiku implementation, strings	800	x11885
1107A	Digits Sequence Dividing greedy, strings	900	x11864
1085A	Right-Left Cipher implementation, strings	800	x11856
165C	Another Problem on Strings binary search, brute force, dp, math, strings, two pointers	1600	x11840
1187B	Letters Shop binary search, implementation, strings	1300	x11834
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x11801
776A	A Serial Killer brute force, implementation, strings	900	x11772
1555D	Say No to Palindromes brute force, constructive algorithms, dp, strings	1600	x11690
1379A	Acacius and String brute force, implementation, strings	1500	x11594
1326D1	Prefix-Suffix Palindrome (Easy version) hashing, string suffix structures, strings	1500	x11576
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x11561
1609B	William the Vigilant implementation, strings	1100	x11488
1307C	Cow and Message brute force, dp, math, strings	1500	x11478
1305B	Kuroni and Simple Strings constructive algorithms, greedy, strings, two pointers	1200	x11241
1628B	Peculiar Movie Preferences greedy, strings	1700	x11150
1140B	Good String implementation, strings	1200	x11128
1952A	Are You a Robot, Again? strings		x11073
778A	String Game binary search, greedy, strings	1700	x11047
1511D	Min Cost String brute force, constructive algorithms, graphs, greedy, strings	1600	x11009
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x10949
1316B	String Modification brute force, constructive algorithms, implementation, sortings, strings	1400	x10911
755B	PolandBall and Game binary search, data structures, games, greedy, sortings, strings	1100	x10901
1151A	Maxim and Biology brute force, strings	1000	x10890
1905C	Largest Subsequence greedy, strings	1400	x10877
1182B	Plus from Picture dfs and similar, implementation, strings	1300	x10815
63A	Sinking Ship implementation, sortings, strings	900	x10773
1251B	Binary Palindromes greedy, strings	1400	x10711
1742F	Smaller constructive algorithms, greedy, strings	1500	x10688
877A	Alex and broken contest implementation, strings	1100	x10680
1659B	Bit Flipping bitmasks, constructive algorithms, greedy, strings	1300	x10582
598B	Queries on a String implementation, strings	1300	x10404
844A	Diversity greedy, implementation, strings	1000	x10348
559B	Equivalent Strings divide and conquer, hashing, sortings, strings	1700	x10332
1096B	Substring Removal combinatorics, math, strings	1300	x10304
745A	Hongcow Learns the Cyclic Shift implementation, strings	900	x10285
1383A	String Transformation 1 dsu, graphs, greedy, sortings, strings, trees, two pointers	1700	x10217
1063A	Oh Those Palindromes constructive algorithms, strings	1300	x10202
271D	Good Substrings data structures, strings	1800	x10178
989A	A Blend of Springtime implementation, strings	900	x10135
94A	Restoring Password implementation, strings	900	x10088
1886C	Decreasing String implementation, strings	1600	x10080
625B	War of the Corporations constructive algorithms, greedy, strings	1200	x10047
1675E	Replace With the Previous, Minimize dsu, greedy, strings	1500	x10036
1952B	Is it stated? strings		x10026
801B	Valued Keys constructive algorithms, greedy, strings	900	x9999
723B	Text Document Analysis expression parsing, implementation, strings	1100	x9987
1737A	Ela Sorting Books greedy, implementation, strings	900	x9925
110B	Lucky String constructive algorithms, strings	1100	x9912
1220C	Substring Game in the Lesson games, greedy, strings	1300	x9883
548A	Mike and Fax brute force, implementation, strings	1100	x9824
1105B	Zuhair and Strings brute force, implementation, strings	1100	x9785
1849C	Binary String Copying binary search, brute force, data structures, hashing, strings	1600	x9742
554B	Ohana Cleans Up brute force, greedy, strings	1200	x9659
1822E	Making Anti-Palindromes greedy, math, strings	1600	x9603
712B	Memory and Trident implementation, strings	1100	x9596
1735C	Phase Shift dfs and similar, dsu, graphs, greedy, implementation, strings	1400	x9523
385B	Bear and Strings brute force, greedy, implementation, math, strings	1200	x9489
1326D2	Prefix-Suffix Palindrome (Hard version) binary search, greedy, hashing, string suffix structures, strings	1800	x9488
616A	Comparing Two Long Integers implementation, strings	900	x9485
1321C	Remove Adjacent brute force, constructive algorithms, greedy, strings	1600	x9442
1680C	Binary String binary search, greedy, strings, two pointers	1600	x9440
1861C	Queries for the Array data structures, dfs and similar, implementation, strings, trees	1600	x9377
549A	Face Detection implementation, strings	900	x9334
822B	Crossword solving brute force, implementation, strings	1000	x9312
1473D	Program data structures, dp, implementation, strings	1700	x9278
525B	Pasha and String constructive algorithms, greedy, math, strings	1400	x9163
108A	Palindromic Times implementation, strings	1000	x9143
518A	Vitaly and Strings constructive algorithms, strings	1600	x9102
665C	Simple Strings dp, greedy, strings	1300	x9091
1295B	Infinite Prefixes math, strings	1700	x9057
1554D	Diane constructive algorithms, greedy, strings	1800	x9046
981A	Antipalindrome brute force, implementation, strings	900	x9018
1301C	Ayoub's function binary search, combinatorics, greedy, math, strings	1700	x8999
975A	Aramic script implementation, strings	900	x8948
259A	Little Elephant and Chess brute force, strings	1000	x8908
1315B	Homecoming binary search, dp, greedy, strings	1300	x8903
490C	Hacking Cypher brute force, math, number theory, strings	1700	x8889
864B	Polycarp and Letters brute force, implementation, strings	1000	x8863
708A	Letters Cyclic Shift constructive algorithms, greedy, implementation, strings	1200	x8838
946C	String Transformation greedy, strings	1300	x8754
1714D	Color with Occurrences brute force, data structures, dp, greedy, strings	1600	x8534
747B	Mammoth's Genome Decoding implementation, strings	900	x8526
868A	Bark to Unlock brute force, implementation, strings	900	x8502
1023A	Single Wildcard Pattern Matching brute force, implementation, strings	1200	x8501
1709C	Recover an RBS constructive algorithms, greedy, implementation, strings	1800	x8462
1051A	Vasya And Password greedy, implementation, strings	1200	x8300
1268A	Long Beautiful Integer constructive algorithms, greedy, implementation, strings	1700	x8273
798B	Mike and strings brute force, dp, strings	1300	x8256
1146B	Hate "A" implementation, strings	1100	x8183
432D	Prefixes and Suffixes dp, string suffix structures, strings, two pointers	2000	x8143
591B	Rebranding implementation, strings	1200	x8122