You are given a string, s, and a list of words, words, that are all of the same length. Find all starting indices of substring(s) in s that is a concatenation of each word in words exactly once and without any intervening characters. Example 1: Input…

problem: You are given a string, S, and a list of words, L, that are all of the same length. Find all starting indices of substring(s) in S that is a concatenation of each word in L exactly once and without any intervening characters. For example, gi…

题目 You are given a string, s, and a list of words, words, that are all of the same length. Find all starting indices of substring(s) in s that is a concatenation of each word in words exactly once and without any intervening characters. For example,…

题目:You are given a string, S, and a list of words, L, that are all of the same length. Find all starting indices of substring(s) in S that is a concatenation of each word in L exactly once and without any intervening characters. For example, given:S:…

问题描述:给定一个字符数组words,和字符串s,返回字符数组中所有字符元素组成的子串在字符串中的位置,要求所有的字符串数组里的元素只在字符串s中存在一次. 算法分析:这道题和strStr很类似.只不过strStr是子串,而这个题是字符串数组里的元素组成的子串,字符串数组里的元素是无序的,但是必须全部包含.所有考虑使用map集合.关键点在于几个临界值,字符串元素在s中重复了怎么做,找到一个符合的子串后怎么做,有字符串元素不匹配怎做. import java.util.ArrayList; imp…

问题描述: Given a string, find the length of the longest substring without repeating characters. Examples: Given "abcabcbb", the answer is "abc", which the length is 3. Given "bbbbb", the answer is "b", with the length…

这道题相对比较简单.正好最近学到StringBuilder就用了. package leetcode.day_12_06; /** * 句子 是一个单词列表,列表中的单词之间用单个空格隔开,且不存在前导或尾随空格.每个单词仅由大小写英文字母组成(不含标点符号). * <p> * 例如,"Hello World"."HELLO" 和 "hello world hello world" 都是句子. * 给你一个句子 s 和一个整数 k,请…

You are given a string, S, and a list of words, L, that are all of the same length. Find all starting indices of substring(s) in S that is a concatenation of each word in L exactly once and without any intervening characters. For example, given:S: "b…

题目链接 You are given a string, S, and a list of words, L, that are all of the same length. Find all starting indices of substring(s) in S that is a concatenation of each word in L exactly once and without any intervening characters. For example, given:…

乘风破浪:LeetCode真题_030_Substring with Concatenation of All Words 一.前言    这次我们还是找字符串的索引,不过,需要将另一个字符串列表中的字符串拼接起来,要求全部都拼接并且出现且仅出现一次,然后在字符串中求子串的起始位置. 二.Substring with Concatenation of All Words 2.1 问题 2.2 分析与解决     其实我们仔细想一下,求子串的索引可以使用工具库来解决,重要的是将字符串列表中的字符串…