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…

717. 1比特与2比特字符 LeetCode717. 1-bit and 2-bit Characters 题目描述 有两种特殊字符.第一种字符可以用一比特0来表示.第二种字符可以用两比特(10 或 11)来表示. 现给一个由若干比特组成的字符串.问最后一个字符是否必定为一个一比特字符.给定的字符串总是由0结束. 示例 1: 输入: bits = [1, 0, 0] 输出: True 解释: 唯一的编码方式是一个两比特字符和一个一比特字符.所以最后一个字符是一比特字符. 示例 2: 输入: b…

https://leetcode.com/problems/1-bit-and-2-bit-characters/description/ We have two special characters. The first character can be represented by one bit 0. The second character can be represented by two bits (10 or 11). Now given a string represented…

We have two special characters. The first character can be represented by one bit 0. The second character can be represented by two bits (10 or 11). Now given a string represented by several bits. Return whether the last character must be a one-bit c…

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"…

题目链接:https://leetcode.com/problems/longest-substring-without-repeating-characters/ 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&qu…

题目如下: Return the lexicographically smallest subsequence of text that contains all the distinct characters of text exactly once. Example 1: Input: "cdadabcc" Output: "adbc" Example 2: Input: "abcd" Output: "abcd" Exa…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 公众号:负雪明烛 本文关键词:无重复字符,最长子串,题解,leetcode, 力扣,python, c++, java 目录 题目描述 题目大意 解题方法 解法一:虫取法+set 方法二:一次遍历+字典 日期 题目地址:https://leetcode.com/problems/longest-substring-without-repeating-characters/descrip…

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. Examples: Given "abcabcbb", the answer is "abc", which the length is 3. Given "bbbbb", the answer is "b", with the length of 1.…