Strings
Problems on strings, including searching for a substring, palindromes, anagrams, comparing and sorting strings, parsing and transforming text, counting characters and words, and string periods.
Narrower problem sets are under Prefix function, Z-function, Hashing and String suffix structures.
Problems
Billing Tables#6292
Very hard
Kickdown#6301
Medium
Remarkable Substrings#6463
Very hard
My brother`s diary#6548
Very easy
Blogger language#6582
Very hard
Zombdar#6612
Medium
Eating Brains#6696
Very hard
A Secret Book#6743
Very hard
Doorman#6830
Very easy
Optimal Keypad#6841
Medium
A DP Problem#6844
Medium
Encrypted SMS#6907
Very easy
Contract Revision#6925
Very easy
Musical Plagiarism#6932
Medium