Longest Palindromic Substring 最长回文子串 学习笔记 1. Brute method 第一种方法:直接循环求解, o(n2) o(n^2) 代码语言:javascript 代码运行次数:0 运行 AI代码解释 class Solution: def longestPalindrome(self, s): """ :type s: str :rtype: str """ l = len(s) max_length = 0 palindromic ...
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: "bb" Pyhton代码如下: classSolution(object):deflongestPalindro...
https://leetcode.com/problems/longest-palindromic-substring/ 题意分析: 这道题目是输入一段不超过1000的字符串,输出最长的回文子字符串,输入的字符串有一个唯一的最长回文子字符串(个人觉得这个没什么用,还限制了一些输入,比如长度为2的时候肯定就只能输入两个相同的字符,还不如改为有同样长度的输出第一个最长...
Loading...leetcode.com/problems/longest-palindromic-substring/discuss/2925/Python-O(n2)-method-with-some-optimization-88ms 二刷提一下,之所以用s[i-maxLen-1:i+1][::-1]而不是s[i:i-maxLen-2:-2],是因为i-maxLen-2可能取-1。 实际上,跟我一样的做法,也有很多人写得代码要漂亮的多,例...
题目描述: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"…
Longest Palindromic Substring 最长回文子串 1. 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. 2. 思路 查找最长回文子串。 dp算......
[Python]Leetcode 5. Longest Palindromic Substring 题目描述 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: “ab......
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. 分析: 方法1:动态规划,建议循环用while,for容易超时,时间复杂度为O(n^2)。
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In computer science, the longest palindromic substring or longest symmetric factor problem is the problem of finding a maximum-length contiguous substring of a given string that is also a palindrome. For example, the longest palindromic substring of "bananas" is "anana". The longest palindromic sub...