Problemset - Codeforces

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Codeforces Round 945 (Div. 2)
00:25:56

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Difficulty: —

strings

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Problems

#	Name
798A	Mike and palindrome brute force, constructive algorithms, strings	1000	x21087
1860A	Not a Substring constructive algorithms, strings	900	x20848
1496A	Split it! brute force, constructive algorithms, greedy, strings	900	x20291
855A	Tom Riddle's Diary brute force, implementation, strings	800	x20176
1381A1	Prefix Flip (Easy Version) constructive algorithms, data structures, strings	1300	x19855
1428C	ABBB brute force, data structures, greedy, strings	1100	x19694
1917B	Erase First or Second Letter brute force, combinatorics, data structures, dp, strings	1100	x19506
1512C	A-B Palindrome constructive algorithms, implementation, strings	1200	x19497
1729C	Jumping on Tiles constructive algorithms, strings	1100	x19462
1825A	LuoTianyi and the Palindrome String greedy, strings	800	x19296
1616B	Mirror in the String greedy, strings	1100	x19116
1301A	Three Strings implementation, strings	800	x19067
1368B	Codeforces Subsequences brute force, constructive algorithms, greedy, math, strings	1500	x19060
1291A	Even But Not Even greedy, math, strings	900	x19055
1682A	Palindromic Indices greedy, strings	800	x19032
1451B	Non-Substring Subsequence dp, greedy, implementation, strings	900	x19010
1144A	Diverse Strings implementation, strings	800	x18855
1251A	Broken Keyboard brute force, strings, two pointers	1000	x18827
1660C	Get an Even String dp, greedy, strings	1300	x18806
1167A	Telephone Number brute force, greedy, strings	800	x18795
1796A	Typical Interview Problem brute force, implementation, strings	800	x18577
1971D	Binary Cut dp, greedy, implementation, sortings, strings	1100	x18570
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x18482
1384A	Common Prefixes constructive algorithms, greedy, strings	1200	x18389
1216A	Prefixes strings	800	x18386
1037C	Equalize dp, greedy, strings	1300	x18340
1673A	Subtle Substring Subtraction games, greedy, strings	800	x18232
1805B	The String Has a Target greedy, strings	800	x18191
676C	Vasya and String binary search, dp, strings, two pointers	1500	x18172
1894A	Secret Sport implementation, strings	800	x18137
1594C	Make Them Equal brute force, greedy, math, strings	1200	x17994
988B	Substrings Sort sortings, strings	1100	x17905
126B	Password binary search, dp, hashing, string suffix structures, strings	1700	x17865
1284A	New Year and Naming implementation, strings	800	x17773
1536B	Prinzessin der Verurteilung brute force, constructive algorithms, strings	1200	x17771
1560D	Make a Power of Two greedy, math, strings	1300	x17674
1304B	Longest Palindrome brute force, constructive algorithms, greedy, implementation, strings	1100	x17442
1466C	Canine poetry dp, greedy, strings	1300	x17326
672B	Different is Good constructive algorithms, implementation, strings	1000	x17074
1669E	2-Letter Strings data structures, math, strings	1200	x16953
1111A	Superhero Transformation implementation, strings	1000	x16581
1794A	Prefix and Suffix Array strings	800	x16570
1139A	Even Substrings implementation, strings	800	x16462
1820A	Yura's New Name implementation, strings	800	x16370
1605C	Dominant Character brute force, greedy, implementation, strings	1400	x16367
1624D	Palindromes Coloring binary search, greedy, sortings, strings	1400	x16296
186A	Comparing Strings implementation, strings	1100	x16244
1093B	Letters Rearranging constructive algorithms, greedy, sortings, strings	900	x16192
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16113
1617A	Forbidden Subsequence constructive algorithms, greedy, sortings, strings	800	x16097
1796B	Asterisk-Minor Template implementation, strings	1000	x16055
202A	LLPS binary search, bitmasks, brute force, greedy, implementation, strings	800	x15907
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x15884
1789B	Serval and Inversion Magic brute force, implementation, strings, two pointers	800	x15805
1278A	Shuffle Hashing brute force, implementation, strings	1000	x15791
43B	Letter implementation, strings	1100	x15752
918B	Radio Station implementation, strings	900	x15700
1332C	K-Complete Word dfs and similar, dsu, greedy, implementation, strings	1500	x15696
448B	Suffix Structures implementation, strings	1400	x15667
706C	Hard problem dp, strings	1600	x15656
501B	Misha and Changing Handles data structures, dsu, strings	1100	x15640
1257C	Dominated Subarray greedy, implementation, sortings, strings, two pointers	1200	x15606
1027A	Palindromic Twist implementation, strings	1000	x15577
1654B	Prefix Removals strings	800	x15481
1201A	Important Exam implementation, strings	900	x15338
1451C	String Equality dp, greedy, hashing, implementation, strings	1400	x15218
1691C	Sum of Substrings brute force, constructive algorithms, greedy, math, strings	1400	x15125
1898A	Milica and String brute force, implementation, strings	800	x15107
1189A	Keanu Reeves strings	800	x15048
1073A	Diverse Substring implementation, strings	1000	x14919
1404A	Balanced Bitstring implementation, strings	1500	x14801
1864B	Swap and Reverse constructive algorithms, greedy, sortings, strings	1100	x14782
1008A	Romaji implementation, strings	900	x14748
1243B1	Character Swap (Easy Version) strings	1000	x14571
1582C	Grandma Capa Knits a Scarf brute force, data structures, greedy, strings, two pointers	1200	x14480
1223B	Strings Equalization strings	1000	x14438
1038A	Equality implementation, strings	800	x14423
1673B	A Perfectly Balanced String? brute force, greedy, strings	1100	x14328
1748B	Diverse Substrings brute force, implementation, strings	1400	x14264
1348C	Phoenix and Distribution constructive algorithms, greedy, sortings, strings	1600	x14199
831B	Keyboard Layouts implementation, strings	800	x14082
1178B	WOW Factor dp, strings	1300	x14014
1697C	awoo's Favorite Problem binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers	1400	x13970
525A	Vitaliy and Pie greedy, hashing, strings	1100	x13901
1553B	Reverse String brute force, dp, hashing, implementation, strings	1300	x13837
701C	They Are Everywhere binary search, strings, two pointers	1500	x13825
1821C	Tear It Apart brute force, implementation, math, strings	1300	x13622
1155A	Reverse a Substring implementation, sortings, strings	1000	x13590
1820B	JoJo's Incredible Adventures math, strings, two pointers	1100	x13447
1896B	AB Flipping greedy, strings, two pointers	900	x13432
1845C	Strong Password binary search, dp, greedy, strings	1400	x13366
1553D	Backspace dp, greedy, strings, two pointers	1500	x13356
1812A	Are You a Robot? special problem, special problem, *special problem, expression parsing, strings		x13064
1194C	From S To T implementation, strings	1300	x12921
1551C	Interesting Story greedy, sortings, strings	1500	x12905
1185B	Email from Polycarp implementation, strings	1200	x12899
1076A	Minimizing the String greedy, strings	1200	x12848
1381A2	Prefix Flip (Hard Version) constructive algorithms, data structures, implementation, strings, two pointers	1700	x12762
554A	Kyoya and Photobooks brute force, math, strings	900	x12732
5C	Longest Regular Bracket Sequence constructive algorithms, data structures, dp, greedy, sortings, strings	1900	x12717