Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 941 (Div. 1)
3 days
Register now »

*has extra registration

Before contest
Codeforces Round 941 (Div. 2)
3 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

strings

Add tag

Problems

#	Name
954B	String Typing implementation, strings	1400	x7092
518B	Tanya and Postcard greedy, implementation, strings	1400	x7791
182D	Common Divisors brute force, hashing, implementation, math, strings	1400	x7792
525B	Pasha and String constructive algorithms, greedy, math, strings	1400	x9171
1735C	Phase Shift dfs and similar, dsu, graphs, greedy, implementation, strings	1400	x9536
1251B	Binary Palindromes greedy, strings	1400	x10715
1905C	Largest Subsequence greedy, strings	1400	x10924
1316B	String Modification brute force, constructive algorithms, implementation, sortings, strings	1400	x10940
1844D	Row Major constructive algorithms, greedy, math, number theory, strings	1400	x11571
1800E1	Unforgivable Curse (easy version) brute force, constructive algorithms, dsu, graphs, greedy, strings	1400	x12084
1421C	Palindromifier constructive algorithms, strings	1400	x12465
1845C	Strong Password binary search, dp, greedy, strings	1400	x13266
1697C	awoo's Favorite Problem binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers	1400	x13911
1748B	Diverse Substrings brute force, implementation, strings	1400	x14173
1691C	Sum of Substrings brute force, constructive algorithms, greedy, math, strings	1400	x15052
1451C	String Equality dp, greedy, hashing, implementation, strings	1400	x15185
448B	Suffix Structures implementation, strings	1400	x15627
1535C	Unstable String binary search, dp, greedy, implementation, strings, two pointers	1400	x16044
1624D	Palindromes Coloring binary search, greedy, sortings, strings	1400	x16187
1605C	Dominant Character brute force, greedy, implementation, strings	1400	x16278
1363B	Subsequence Hate implementation, strings	1400	x22831
291B	Command Line Arguments *special problem, implementation, strings	1300	x3010
123A	Prime Permutation implementation, number theory, strings	1300	x3506
147A	Punctuation implementation, strings	1300	x3548
61B	Hard Work strings	1300	x3779
34C	Page Numbers expression parsing, implementation, sortings, strings	1300	x4061
653B	Bear and Compressing brute force, dfs and similar, dp, strings	1300	x4867
628C	Bear and String Distance greedy, strings	1300	x5648
66A	Petya and Java implementation, strings	1300	x6190
612A	The Text Splitting brute force, implementation, strings	1300	x7005
318B	Strings of Power implementation, strings, two pointers	1300	x7359
798B	Mike and strings brute force, dp, strings	1300	x8258
946C	String Transformation greedy, strings	1300	x8757
1315B	Homecoming binary search, dp, greedy, strings	1300	x8945
665C	Simple Strings dp, greedy, strings	1300	x9111
1220C	Substring Game in the Lesson games, greedy, strings	1300	x9888
1063A	Oh Those Palindromes constructive algorithms, strings	1300	x10206
1096B	Substring Removal combinatorics, math, strings	1300	x10322
598B	Queries on a String implementation, strings	1300	x10414
1659B	Bit Flipping bitmasks, constructive algorithms, greedy, strings	1300	x10591
1182B	Plus from Picture dfs and similar, implementation, strings	1300	x10824
1187B	Letters Shop binary search, implementation, strings	1300	x11843
1029A	Many Equal Substrings implementation, strings	1300	x11989
1194C	From S To T implementation, strings	1300	x12763
1821C	Tear It Apart brute force, implementation, math, strings	1300	x13529
1553B	Reverse String brute force, dp, hashing, implementation, strings	1300	x13790
1178B	WOW Factor dp, strings	1300	x13795
1466C	Canine poetry dp, greedy, strings	1300	x17280
1560D	Make a Power of Two greedy, math, strings	1300	x17606
1037C	Equalize dp, greedy, strings	1300	x18276
1660C	Get an Even String dp, greedy, strings	1300	x18690
1381A1	Prefix Flip (Easy Version) constructive algorithms, data structures, strings	1300	x19822
508B	Anton and currency you all know greedy, math, strings	1300	x22036
928A	Login Verification *special problem, strings	1200	x3330
412C	Pattern implementation, strings	1200	x3845
143B	Help Kingdom of Far Far Away 2 implementation, strings	1200	x4909
8A	Train and Peter strings	1200	x5483
5B	Center Alignment implementation, strings	1200	x5526
151B	Phone Numbers implementation, strings	1200	x6210
722B	Verse Pattern implementation, strings	1200	x6341
989B	A Tide of Riverscape constructive algorithms, strings	1200	x6968
591B	Rebranding implementation, strings	1200	x8126
1051A	Vasya And Password greedy, implementation, strings	1200	x8305
1023A	Single Wildcard Pattern Matching brute force, implementation, strings	1200	x8502
708A	Letters Cyclic Shift constructive algorithms, greedy, implementation, strings	1200	x8842
385B	Bear and Strings brute force, greedy, implementation, math, strings	1200	x9502
554B	Ohana Cleans Up brute force, greedy, strings	1200	x9661
625B	War of the Corporations constructive algorithms, greedy, strings	1200	x10052
1140B	Good String implementation, strings	1200	x11133
1305B	Kuroni and Simple Strings constructive algorithms, greedy, strings, two pointers	1200	x11269
1834C	Game with Reversing games, greedy, math, strings	1200	x12563
1076A	Minimizing the String greedy, strings	1200	x12817
1185B	Email from Polycarp implementation, strings	1200	x12855
1582C	Grandma Capa Knits a Scarf brute force, data structures, greedy, strings, two pointers	1200	x14244
1257C	Dominated Subarray greedy, implementation, sortings, strings, two pointers	1200	x15534
1669E	2-Letter Strings data structures, math, strings	1200	x16794
1536B	Prinzessin der Verurteilung brute force, constructive algorithms, strings	1200	x17654
1594C	Make Them Equal brute force, greedy, math, strings	1200	x17814
1907C	Removal of Unattractive Pairs constructive algorithms, greedy, math, strings	1200	x18204
1384A	Common Prefixes constructive algorithms, greedy, strings	1200	x18361
1512C	A-B Palindrome constructive algorithms, implementation, strings	1200	x19409
1800D	Remove Two Letters data structures, greedy, hashing, strings	1200	x21580
1369B	AccurateLee greedy, implementation, strings	1200	x23709
1575A	Another Sorting Problem data structures, sortings, strings	1100	x4196
312A	Whose sentence is it? implementation, strings	1100	x4845
245B	Internet Address implementation, strings	1100	x5118
90B	African Crossword implementation, strings	1100	x5144
196A	Lexicographically Maximum Subsequence greedy, strings	1100	x5282
505A	Mr. Kitayuta's Gift brute force, implementation, strings	1100	x6587
765B	Code obfuscation greedy, implementation, strings	1100	x7015
544A	Set of Strings implementation, strings	1100	x7712
1146B	Hate "A" implementation, strings	1100	x8287
712B	Memory and Trident implementation, strings	1100	x9599
1105B	Zuhair and Strings brute force, implementation, strings	1100	x9785
548A	Mike and Fax brute force, implementation, strings	1100	x9828
110B	Lucky String constructive algorithms, strings	1100	x9920
723B	Text Document Analysis expression parsing, implementation, strings	1100	x9988
877A	Alex and broken contest implementation, strings	1100	x10683
755B	PolandBall and Game binary search, data structures, games, greedy, sortings, strings	1100	x10904
1609B	William the Vigilant implementation, strings	1100	x11491