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, giv…

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…

[058-Length of Last Word (最后一个单词的长度)] [LeetCode-面试算法经典-Java实现][全部题目文件夹索引] 原题 Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the string. If the last word does not exist, return…

给定一个字符串 s 和一些长度相同的单词 words,找出 s 与 words 中所有单词(words 每个单词只出现一次)串联一起(words中组成串联串的单词的顺序随意)的字符串匹配的所有起始索引,子串要与串联串完全匹配,中间不能有其他字符.举个例子,给定:s:"barfoothefoobarman"words:["foo", "bar"]你应该返回的索引: [0,9].(任意顺序)详见:https://leetcode.com/proble…

[139-Word Break(单词拆分)] [LeetCode-面试算法经典-Java实现][全部题目文件夹索引] 原题 Given a string s and a dictionary of words dict, determine if s can be segmented into a space-separated sequence of one or more dictionary words. For example, given s = "leetcode", di…

[030-Substring with Concatenation of All Words(串联全部单词的子串)] [LeetCode-面试算法经典-Java实现][全部题目文件夹索引] 原题 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 concate…

[032-Longest Valid Parentheses(最长有效括号)] [LeetCode-面试算法经典-Java实现][全部题目文件夹索引] 原题 Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring. For "(()", the longest valid pare…

[053-Maximum Subarray(最大子数组和)] [LeetCode-面试算法经典-Java实现][全部题目文件夹索引] 原题 Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example, given the array [−2,1,−3,4,−1,2,1,−5,4], the contiguous subarr…

[062-Unique Paths(唯一路径)] [LeetCode-面试算法经典-Java实现][全部题目文件夹索引] 原题 A robot is located at the top-left corner of a m x n grid (marked 'Start' in the diagram below). The robot can only move either down or right at any point in time. The robot is trying to…

[059-Spiral Matrix II(螺旋矩阵II)] [LeetCode-面试算法经典-Java实现][全部题目文件夹索引] 原题 Given an integer n, generate a square matrix filled with elements from 1 to n2 in spiral order. For example, Given n = 3, You should return the following matrix: [ [ 1, 2, 3 ], [ 8…