A permutation also called an “arrangement number” or “order,” is a rearrangement of the elements of an ordered list S into a one-to-one correspondence with S itself. A string of length n has n!

Given two strings `s1` and `s2`, return `true` if `s2` contains the permutation of `s1`. In other words, one of the first string's permutations is the substring of the second string. Intuition: To ...

Abstract: In this paper, we introduce new codeword sets based on order complexity (OC) which measures uncertainty of the order having each permutation string. The proposed codeword sets are generated ...