最长无重复子串问题 leetcode 3】的更多相关文章

一.代码及注释 class Solution { public: int lengthOfLongestSubstring(string s) { int n = s.size(); //字符串的长度 ; //最长无重复子串的长度 //建立map表 key为字符 val为该字符的下一个坐标位置 //val取符号坐标+1用于更新start unordered_map<char,int> m; //定义start和end end即为当前字符,不断+1 ,end=;end<n;end++){…
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…
题目 给定一个字符串,找出不含有重复字符的最长子串的长度. 解答 刚开始以为只是一遍遍历后来的字符和前面一样便开始算新子串,给的案例都过了,但是卡在了"dvdf" 后来经过重重试验,暴力循环,不断调整变量作用域,在经过 "ohvhjdml" "bbbbb" "abcabcbb" "pwwkew" "ppkw" "ak" 这几个字符串的测试下,暴力法终于通过了,但是用时…
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…
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…
题目: 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…
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…
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…