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. 面DP题的考官都是神经病. .(吐槽) 貌似挺easy出回文的题,那么今天细致分析下DP的做法!! 以解我被DP问题虐成渣渣的心碎感觉.如有错误请指出…

链接:https://ac.nowcoder.com/acm/contest/908/G 题意: A palindrome is a symmetrical string, that is, a string read identically from left to right as well as from right to left. For example, ”a”.”aba”.“abba” are palindrome and “abc”.”aabb” are not. Let’s d…

/* * 5.Longest Palindrome substring * 2016-4-9 by Mingyang 自然而然的想到用dp来做 * 刚开始自己做的时候分的条件太细,两个index相等,相差小于3,还有其他 * 但这里这个if写的很好,一个代表了所有为true的情况 * 根本不用管为false的情况,因为自然而然为false * */ public String longestPalindrome(String s) { String res = " "; if (s =…

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, 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 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 leng…

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. 题目的意思:输入一个字符串S,找出其最长回文串 用动态规划求解 决策变量:dp[i][j]记录从s[i]到s[j]组成的子串是否为回文. dp[i+1…

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, and there exists one unique longest palindromic substring. 方法: Manacher's algorithm,具体看这里http://leetcode.com/2011/11/longest-palindrom…

原题链接在这里:https://leetcode.com/problems/longest-palindrome/ 题目: 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&qu…