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
Isomorphic Suffix Trees#5941
Very hard
Pattern Matching#5951
Very hard
What word?#5979
Easy
Gray Code#6005
Very easy
Relative Paths#6007
Medium
ls#6024
Very easy
Boggle#6030
Easy
Linear Pachinko#6053
Medium
Frugal Search#6056
Medium
Rotate and Rewrite#6107
Very hard
ABC#6137
Easy
Dragon Pattern#6175
Very hard
Party Games#6215
Hard
Heavy Chain Clusterization#6267
Very hard