It can be shown that all other substrings contain either "aaa" or "cb" as a substring. Example 2: Input: word = "leetcode", forbidden = ["de","le","e"] Output: 4 Explanation: There are 11 valid substrings in word: "l", "t", "c", "o", "d", "tc", "co", "od", ...
public class Solution { /** * @param s: input string * @return: the longest palindromic substring */ public String longestPalindrome(String s) { // write your code here char[] S = s.toCharArray(); int sLength = S.length; String[][] f = new String[sLength ][sLength ]; return ...
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 sconsist of only digits and English letters. Accepted 3.8M Submission...
41. Longest Valid Parentheses 最长有效括号算法:本题用两种方法解,一是stack,二是双向遍历面试准备系列,注重培养互联网大厂的面试能力,注重编程思路,coding限时,代码规范,想要求职,转行或者跳槽的朋友们别忘了一键三连一下,新人up主需要你宝贵的支持哟~
Given “pwwkew”, the answer is “wke”, with the length of 3. Note that the answer must be a substring, “pwke” is a subsequence and not a substring. 题意就不说了,这道题是求的是最大的不重复的子串,求解重复子串可以类似采用最长公共子串的解法。
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" 来源:力扣(LeetCode) 链接:https://leetcode-cn.com/problems/longest-palindromic-substring ...
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classSolution{public StringlongestPalindrome(String s){//从长到短截取所有子字符串String sub="";int count;boolean tag=false;for(int i=s.length();i>0;i--){//i 子字符串长度for(int j=0;j<=s.length()-i;j++){//j 子字符串起始位置sub=s.substring(j,j+i);//判断是否是回文count=0;...
publicStringlongestPalindrome(String s){// Your Code} 题目分析 该题目是字符串类型的Medium题目,要求找到字符串中最长的回文子串(LeetCode 3的题目中解释了substring和subsequence的区别),回文串就是顺序和逆序相同的字符串,如Examples所示。最朴素的想法是找到字符串的所有子串,查看每个子串是否是回文串,这种算法的...
Can you solve this real interview question? Longest Valid Parentheses - Given a string containing just the characters '(' and ')', return the length of the longest valid (well-formed) parentheses substring. Example 1: Input: s = "(()" Output: 2 Exp