Computing a Longest Common Palindromic Subsequence
نویسندگان
چکیده
The longest common subsequence (LCS) problem is a classic and well-studied problem in computer science. Palindrome is a word which reads the same forward as it does backward. The longest common palindromic subsequence (LCPS) problem is a variant of the classic LCS problem which finds a longest common subsequence between two given strings such that the computed subsequence is also a palindrome. In this paper, we study the LCPS problem and give two novel algorithms to solve it. To the best of our knowledge, this is the first attempt to study and solve this problem.
منابع مشابه
A hardness result and new algorithm for the longest common palindromic subsequence problem
The 2-LCPS problem, first introduced by Chowdhury et al. [Fundam. Inform., 129(4):329–340, 2014], asks one to compute (the length of) a longest palindromic common subsequence between two given strings A and B. We show that the 2-LCPS problem is at least as hard as the well-studied longest common subsequence problem for 4 strings. Then, we present a new algorithm which solves the 2-LCPS problem ...
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تاریخ انتشار 2012