LeetCode 278. 第一个错误的版本 First Bad Version
LeetCode 278. 第一个错误的版本 First Bad VersionTable of Contents一、中文版二、英文版三、My answer四、解题报告一、中文版你是产品经理，目前正在带领一个团队开发新的产品。不幸的是，你的产品的最新版本没有通过质量检测。由于每个版本都是基于之前的版本开发的，所以错误的版本之后的所有版本都是错的。假设你有 n 个版本 [1, 2, ..., n]....
LeetCode 387. First Unique Character in a String
DescriptionGiven 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....
LeetCode 278. First Bad Version
DescriptionYou are a product manager and currently leading a team to develop a new product. Unfortunately, the latest version of your product fails the quality check. Since each version is developed ....
LeetCode（数据库）- First and Last Call On the Same Day
题目链接：点击打开链接题目大意：略。解题思路：注意是‘每天’的第一个和最后一个电话。AC 代码with a as ( SELECT caller_id, recipient_id, call_time FROM Calls UNION ALL SELECT recipient_id caller_id, caller_id recipient_id, call_t...
LeetCode之First Unique Character in a String
1、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 2.2、代码实现public clas....
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. 案例: s = "leetcode" 返回 0. s = "love.....
[LeetCode] First Unique Character in a String 字符串第一个不同字符
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 ...
[LeetCode] First Missing Positive 首个缺失的正数
Given an unsorted integer array, find the first missing positive integer. For example, Given [1,2,0] return 3, and [3,4,-1,1] return 2. Your algorithm should run in ...
[LeetCode] First Bad Version 第一个坏版本
You are a product manager and currently leading a team to develop a new product. Unfortunately, the latest version of your product fails the quality check. Since each version is developed based on th....
leetCode 387. First Unique Character in a String 字符串
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&nb...
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