Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. Examples: s = "leetcode" return 0. s = "loveleetcode", return 2. Note: You may assume the string contain only lowercase letters. 给一个字符串,找出第一个不重复的...
387. First Unique Character in a String Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. Examples: s = "leetcode" return 0. s = "loveleetcode", return 2. Note:You may assume the string contain only lowercase let...
原题链接在这里:https://leetcode.com/problems/first-unique-character-in-a-string/ 题目: Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. Examples: s = "leetcode" return 0. s = "loveleetcode", return 2. 题解: ...
387. First Unique Character in a String Given a string, find the first non-repeating character in it and return it’s index. If it doesn’t exist, return -1. Examples: Note: You may assume t...LeetCode387. First Unique Character in a String Given a string, find the first non-rep...
LeetCode-First Unique Character in a String Description: Given a string, find the first non-repeating character in it and return it’s index. If it doesn’t exist, return -1. Examples: AI检测代码解析 s = "leetcode" return 0. s = "loveleetcode",...
LeetCode 387: 字符串中的第一个唯一字符 First Unique Character in a String 题目: 给定一个字符串,找到它的第一个不重复的字符,并返回它的索引。如果不存在,则返回 -1。 Given a string, find the first non-repeating character in it and return it’s index. If it doesn’t exist, return -1....
387. First Unique Character in a String(字符串中的第一个唯一字符)-- c语言 Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. Examples: Note:&nbs...387.字符串中的第一个唯一字符 First Unique Character in a String ...
英文 Given a string s, return the first non-repeating character in it and return its index. If...
Given a strings,find the first non-repeating character in it and return its index. If it does not exist, return-1. 给定一个字符串,找到第一个不重复的字符,并返回其索引。如果不存在不重复的字符,则返回-1。 Input: s = "leetcode" Output: 0 解题思路 这个题目借鉴了一个大佬的解题思路:我们只...
这里的过程可参考Longest Substring Without Repeating Characters - Leetcode 3 - Python 代码如下: 代码语言:Swift AI代码解释 classSolution{funclengthOfLongestSubstring(_s:String)->Int{ifs.length==0{return0}letcharList=Array(s)varlist:[Character]=[]varleft:Int=0varmaxLength:Int=0forrightin0..<char...