描述:给一个字符串s,查找它的最长的回文子串.s的长度不超过1000. Input: "babad" Output: "bab" Note: "aba" is also a valid answer. 我是采用动态规划解决此题的.官方的solutions中提供了几种思路,包括我使用的DP.这里摘要如下: 思路1: 将s反转得到s',然后查找s和s'的最长公共子串substring,那么substring就是最长回文子串.比如:s = "…

Leetcode 5. Longest Palindromic Substring(最长回文子串, Manacher算法) Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000. Example 1: Input: "babad" Output: "bab" Note: "aba&q…

Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000. Example 1: Input: "babad" Output: "bab" Note: "aba" is also a valid answer. Example 2: Input: "cbbd"…

Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000. Example 1: Input: "babad" Output: "bab" Note: "aba" is also a valid answer. Example 2: Input: "cbbd"…

Given a string s, find the longest palindromic subsequence's length in s. You may assume that the maximum length of s is 1000. Example 1:Input: "bbbab" Output: 4 One possible longest palindromic subsequence is "bbbb". Example 2:Input:…

要求: Given a string S, find the longest palindromic substring in S. (从字符串 S 中最长回文子字符串.) 何为回文字符串? A palindrome is a string which reads the same in both directions. For example, “aba” is a palindome, “abc” is not. 解决方法:参考:http://leetcode.com/2011/11/lon…

Given a string S, find the longest palindromic substring in S. You may assume that the maximum length of S is 1000, and there exists one unique longest palindromic substring. 这道题让我们求最长回文子串,首先说下什么是回文串,就是正读反读都一样的字符串,比如 "bob", "level", &q…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 公众号:负雪明烛 本文关键词:最长回文子串,题解,leetcode, 力扣,python, C++, java 目录 题目描述 题目大意 解题方法 暴力遍历 动态规划 日期 题目地址:https://leetcode.com/problems/longest-palindromic-substring/description/ 题目描述 Given a string s, find t…

题目链接 Given a string S, find the longest palindromic substring in S. You may assume that the maximum length of S is 1000, and there exists one unique longest palindromic substring. 求字符串的最长回文子串 算法1:暴力解法,枚举所有子串,对每个子串判断是否为回文,复杂度为O(n^3) 算法2:删除暴力解法中有很多重复的判…

原文地址: http://articles.leetcode.com/2011/11/longest-palindromic-substring-part-i.html 转载请注明出处:http://www.cnblogs.com/zhxshseu/p/4947609.html 问题描述:Given a string S, find the longest palindromic substring in S. 这道题目是一个经典的动态规划DP http://challenge.greplin.…