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

题目来源和题意分析: 详情请看我的博客:http://www.cnblogs.com/chruny/p/4791078.html 题目思路: 我上一篇博客解决这个问题的时间复杂度是最坏情况是(O(n^2)).但是昨天我网上看了别人的做法,其中有一个Manacher算法,其算法复杂度是(O(n)).所以我根据Manacher算法实现了最长回文子字符串. 下面我介绍Manacher算法的原理,这原理博文转载于http://blog.csdn.net/dyx404514/article/details…

1.题目描述 2.问题分析 计算每个字符所组成的字符串的回文子串. 3.代码 string longestPalindrome(string s) { ; ; bool is_odd = false ; string res ; ){ return res; } ; i < s.size() ; i++){ int n_odd = countLenOfPra(s ,i, i); ); if(n_odd > maxL ){ maxL = n_odd; index = i; is_odd = tr…

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. 解题思路一: 暴力枚举 共N^2量级个子串(从下标零开始),每次检查需一个for循环,等于是3重for循环,时间复杂度O(n^3) 解题思路二: 动态…

一天一道LeetCode系列 (一)题目 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. 题意:求一个字符串的最长回文字串. (二)解题 1.中心扩展法 看到这个题首先想到的就是中心扩展法,遍历每一…

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:https://leetcode.com/problems/longest-palindromic-substring/ 题目: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. 解题思路:p…

我现在在做一个叫<leetbook>的免费开源书项目,力求提供最易懂的中文思路,目前把解题思路都同步更新到gitbook上了,需要的同学可以去看看 书的地址:https://hk029.gitbooks.io/leetbook/ 005.Longest Palindromic [M] Longest Palindromic M 题目 思路 题目 Given a string S, find the longest palindromic substring in S. You may assu…

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