Longest Substring Without Repeating Characters Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the lengt…

Problem:Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. For "bbbbb" the longe…

题目描述 Given a string, find the length of the longest substring without repeating characters. Example 1 Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. Example 2 Input: "bbbbb" Output: 1 Expl…

LeetCode 第 3 题(Longest Substring Without Repeating Characters) 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 "b…

问题简介:求给定字符串中最长的字符不重复的字符串的长度 问题详解: 给定一个字符串,寻找给定字符串中包含的最长的字符不重复的字符串的长度 注:答案必须是子字符串,不是子序列 是连续的字符不重复的字符串,不是所有不重复字符 举例: 1. 输入: “abcabcbb” 输出: 3 解释: 结果是 “abc”, 长度是 3 2. 输入: “bbbbb” 输出: 1 解释: 结果是 “b”,长度是 1 3. 输入: “pwwkew” 输出: 3 解释: 结果是 “wke”,长度是 3 JAVA 实现方法…

题目等级:Medium 题目描述:   Given a string, find the length of the longest substring without repeating characters.   Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3.   Example 2: Input: "bbbbb…

题目如下: Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. Example 2: Input: "bbbbb" Output: 1 E…

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 of 1.…

题目: Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. For "bbbbb" the longest s…

HashMap的应用可以提高查找的速度,键key,值value的使用拜托了传统数组的遍历查找方式,对于判断一个字符或者字符串是否已经存在的问题可以非常好的解决.而本题需要解决的问题就是判断新遍历到的字符是否已经存在于左left,右right,字符构成的子串之中. 解题思路:设置一个left作为子串的最左边的字符位置坐标,right不断向右遍历,并对每次遍历得到的字符进行判断,max作为最大的没有重复字符的子串长度.对于right遍历得到的新的字符,有两种情况: 一:在Hash表中没有,此时该字符…

idea: 设置一个hashset存储非重复元素 j:遍历s i:最近的一个非重复指针 注意点: 1.Set set = new HashSet<>(); add remove public int lengthOfLongestSubstring(String s) { int i = 0, j = 0, max = 0; Set<Character> set = new HashSet<>(); while(j < s.length()){ if(! set.…

这是悦乐书的第341次更新,第365篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Medium级别的第2题Longest Substring Without Repeating Characters(顺位题号是3).给定一个字符串,找到最长无重复字符子字符串的长度.例如: 输入:"abcabcbb" 输出:3 说明:答案是"abc",长度为3. 输入:"bbbbb" 输出:1 说明:答案是"b",长度为1. 输…

题目: Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for “abcabcbb” is “abc”, which the length is 3. For “bbbbb” the longest substring is “b”, with the…

[Q1] Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have exactly one solution, and you may not use the same element twice. Example: Given nums = [2, 7, 11…

题目中文:没有重复字符的最长子串 题目难度:Medium 题目内容: 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 &q…

3. Longest Substring Without Repeating Characters Given a string, find the length of the longest substring without repeating characters. Examples: Given . Given . Given . Note that the answer must be a substring, "pwke" is a subsequence and not…

题目: Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. Example 2: Input: "bbbbb" Output: 1 Exp…

Given a string, find the length of the longest substring without repeating characters. Example 1:           Input: "abcabcbb"                              Output: 3                           Explanation: The answer is "abc", with the l…

Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. For "bbbbb" the longest subst…

3. Longest Substring Without Repeating Characters Medium Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of…

Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. For "bbbbb" the longest subst…

Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. Example 2: Input: "bbbbb" Output: 1 Explana…

最长无重复字符的子串 Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. Example 2: Input: "bbbbb" Output…

LeetCode 第3题3 Longest Substring Without Repeating Characters 首先我们看题目要求: Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "a…

LeetCode(2) || Add Two Numbers && Longest Substring Without Repeating Characters 题记 刷LeetCode第二天,今天做了两道题,速度比我想的要慢,看样子两个月的目标有点难,尽力吧.今天主要做了Add Two Numbers和Longest Substring Without Repeating Characters 两道题,下面就来看下这两道题吧. 题一:Add Two Numbers 题目内容 You ar…

一天一道LeetCode (一)题目 Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. For "bbbbb"…

这周前面刷题倒是蛮开心,后面出了很多别的事情和问题就去忙其他的,结果又只完成了最低目标. Lonest Substring Without Repeating Characters: Given a string, find the length of the longest substring without repeating characters. Examples: Given "abcabcbb", the answer is "abc", which t…

题目: Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. For "bbbbb" the longest s…

乘风破浪:LeetCode真题_003_Longest Substring Without Repeating Characters 一.前言 在算法之中出现最多的就是字符串方面的问题了,关于字符串的模式匹配,回文字符串,等等问题都是非常经典的,同样的在字符串之中寻找最长的不重复的字符串的长度也是比较有意义的. 二.LeetCode真题_003_Longest Substring Without Repeating Characters 2.1 问题 2.2 分析与解决 问题是非常清晰的,我们最…

July 16, 2015 Problem statement: Longest Substring Without Repeating Characters Read the blog: http://blog.csdn.net/fightforyourdream/article/details/17860983 这算法写了很多次, 时间太长, 半年前, 有一次写了二个小时, 写不下去, 想法不好, 没有办法收场; 接着, 又写了四天, 每天二小时, 把上次代码拿出来看, 有什么问题, 改写.…