题目 题目链接 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 English letters only and its length will not ex…

459. Repeated Substring Pattern 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 English letters only an…

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 English letters only and its length will not exceed 100…

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[0...j-1],前k个字母等于后k个字母 现在求解str的next数组: 初始化:next[0] = -1 那么在知道了next[j]的情况下,如何递推地求出next[j+1]呢?分两种情况(令k=next[j]…

Problem: 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 English letters only and its length will not e…

459. Repeated Substring Pattern[easy] 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 English letters o…

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 English letters only and its length will not exceed 100…

https://leetcode.com/problems/repeated-substring-pattern/#/description 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 consis…

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 English letters only and its length will not exceed 100…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 遍历子串 日期 [LeetCode] 题目地址:https://leetcode.com/problems/repeated-substring-pattern/ Difficulty: Easy 题目描述 Given a non-empty string check if it can be constructed by taking a subs…