Given a string text, we are allowed to swap two of the characters in the string. Find the length of the longest substring with repeated characters. ...
Given a non empty string check if it can be constructed by taking a substring of it and appending multiple copies of the substring together. You may assume the given string consists of lowercase Engl ...
2016-11-21 22:37 8 13297 推荐指数:
Given a string text, we are allowed to swap two of the characters in the string. Find the length of the longest substring with repeated characters. ...
复习一下KMP算法 KMP的主要思想是利用字符串自身的前缀后缀的对称性,来构建next数组,从而实现用接近O(N)的时间复杂度完成字符串的匹配 对于一个字符串str,next[j] = k 表示满足str[0...k-1] = str[j-k...j-1]的最大的k,即对于子串str ...
题目描述 对于一个非空字符串,判断其是否可由一个子字符串重复多次组成。字符串只包含小写字母且长度不超过10000。 样例1 输入: “abab” 输出: True 样例解释: 输入可由”ab”重复两次组成 样例 2 输入: “aba ...
给定一个字符串,请你找出其中不含有重复字符的 最长子串 的长度。 示例 1: 示例 2: 示例 3: 我的代码时间复杂度是O(n^2) ...
Given two integer arrays A and B, return the maximum length of an subarray that appears in both a ...
题意: 给出一个字符串 S,考虑其所有重复子串(S 的连续子串,出现两次或多次,可能会有重叠)。返回任何具有最长可能长度的重复子串。(如果 S 不含重复子串,那么答案为 ""。) 示例 1: 示例 2: 思路:(字符串hash+二分) 针对长度简单 ...
Given two strings A and B, find the minimum number of times A has to be repeated such that B is a substring of it. If no such solution, return -1. ...
题干: Given a string, find the length of the longest substring without repeating characters. Examples: Given "abcabcbb", the answer is "abc", which ...