不管怎么说,每天还是要水一篇博文,写一个LeetCode的题才圆满。 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. 第一想法是遍历的过程用...
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 longes
【LeetCode】5. Longest Palindromic Substring 陌儿的百科全书 来自专栏 · LeetCode 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 1: Input: "babad" Output: "bab" Note: "aba" is also a valid answer. ...
首先,我们通过在字母之间插入特殊字符'#'来将输入字符串S转换为另一个字符串T,这么做的原因很快就会很快清楚。例如:S =“abaaba”,T =“#a#b#a#a#b#a...
5. Longest Palindromic Substring Given a strings, returnthe longestpalindromicsubstringins. Example 1: Input:s = "babad"Output:"bab"Explanation:"aba" is also a valid answer. Example 2: Input:s = "cbbd"Output:"bb" Constraints: 1 <= s.length <= 1000...
原题链接 :leetcode.com/problems/l Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000. 给定字符串 s,找到 s 中最长的回文字符串,可以假定 s 的最大长度是 1000。 Example 1: Input: "babad" Output: "bab" Note: "aba" is...
if numRows == 1:return s i, flag = 0, -1 res = ['']*numRows for c in s: res[i] += c if i == 0 or i == numRows -1: flag = -flag i += flag return ''.join(res) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12....
Leetcode-Medium 5. Longest Palindromic Substring,题目描述给定一个字符串s,找到s中最长的回文子串。你可以假设s长度最长为1000。Example1:Input:ut:"cbbd"Output:"bb"思路假如输入的字符串长度就...
LeetCode刷题，是为了获得面经，这是题目5的java实现解法 工具/原料 笔记本 eclipse 方法/步骤 1 题目叙述Given a stringS, find the longest palindromic substring inS. You may assume that the maximum length ofSis 1000, and there exists one unique longest palindromic substring.2 本体可以使用动态规划去...
,而且substring还会创建String对象。 空间复杂度: 。 提交代码: leetcode提交结果 果真差的可以。 solution 2 根据回文子串的定义,可以发现如果某个子串是回文子串,那么它的特征是中心对称。如果回文子串的长度是奇数,那么它以中心元素对称;如果回文子串的长度是偶数,那么它以中心的间隙对称,所以一共有 ...