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"…
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…
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…
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…
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.…
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:…
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:…
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…
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. 方法一(暴力解法): 就上暴力加些剪枝. 枚举回文串的长度,从最长的开始,寻找是否有当前长度的回文串. 如果找到,直接弹出循环,没找到就减小回文串的长…
本文转自:http://www.cnblogs.com/TenosDoIt/p/3675788.html 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…
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:…
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:…
作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题思路 代码 刷题心得 日期 题目地址:https://leetcode.com/problems/longest-palindromic-subsequence/description/ 题目描述 Given a string s, find the longest palindromic subsequence's length in s. You ma…
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. (1) class Solution { public: string longestPalindrome(string s) { if (s ==…
[转载请注明]http://www.cnblogs.com/igoslly/p/8726771.html 来看一下题目: 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"…
给定一个字符串 s,找到 s 中最长的回文子串.你可以假设 s 的最大长度为 1000. 示例 1:输入: "babad"输出: "bab"注意: "aba" 也是一个有效答案. 示例 2:输入: "cbbd"输出: "bb" 思路一:暴力法,不说了 思路二:动态规划 参考官方给的思路: How can we reuse a previously computed palindrome to compute…
Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This is case sensitive, for example "Aa" is not considered a palindrome here. Note:Assume the lengt…
给定一个字符串s,找到其中最长的回文子序列.可以假设s的最大长度为1000. 详见:https://leetcode.com/problems/longest-palindromic-subsequence/description/ C++: class Solution { public: int longestPalindromeSubseq(string s) { int n = s.size(); vector<vector<int>> dp(n, vector<in…
