在一个字符串中寻找出最长的无重复字符的子串的,在不断的后续检索中需要去掉前面一个重复的字符,那么就是需要记录之前所出现过的字符的,在这里需要利用hashmap来记录字符和其出现的位置之间的映射关系的,在考虑移动更改坐标值的时候就是维护的一个滑动窗口的,这个窗口的最右端的就是当前遍历到的字符的位置然后来求出窗口的大小的,同时为了记录窗口的左边界需要使用left来定位左边界.在不断的扩充右边界的时候同时需要检查左边界的字符的,也就是需要移动left指针的,并且利用hashmap来记录对应的下标值,并…

Leetcode 3. Longest Substring Without Repeating Characters 提交网址: https://leetcode.com/problems/longest-substring-without-repeating-characters/ Total Accepted: 149135 Difficulty: Medium Given a string, find the length of the longest substring without…

题目来源:https://leetcode.com/problems/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"…

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…

# -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com'https://oj.leetcode.com/problems/longest-substring-without-repeating-characters/ Given a string, find the length of the longest substring without repeating characters.For example, the longes…

[题目描述] 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 a substring. [解决思路] 方法可能比较笨,但是可用成功解决此问题,通过判…

Description 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 l…

Longest Substring Without Repeating Characters题解 原创文章,拒绝转载 题目来源:https://leetcode.com/problems/longest-substring-without-repeating-characters/description/ Description Given a string, find the length of the longest substring without repeating character…

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…

题目描述 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…