LeetCode problem: 567. Permutation in String. Given a pattern and a string, find out if the string contains any permutation of the pattern. Input: Pattern = "abc", String = "oidbcaf" Output: true ...

In permutation problem, we usually initalize extending result variable at each recursive call. These extending result variables all contribute to the final result, it will be returned to the lower ...

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 ...

Abstract: We construct codes for the Chebyshev permutation channels whose study was initiated by Langberg et al. (2015). We establish several recursive code constructions and present efficient ...