原题:https://leetcode.cn/problems/average-time-of-process-per-machine/ 题意:现在有一个工厂网站由几台机器运行,每台机器上运行着相同数量的进程。编写解决方案,计算每台机器各自完成一个进程任务的平均耗时。 完成一个进程任务的时间指进程的'end' 时间戳减去'start' 时间戳。平均耗时通过计算每台机器上所有...
题目链接:https://leetcode.cn/problems/department-top-three-salaries/?envType=study-plan-v2&envId=sql-free-50 185. 部门工资前三高的所有员工: 表: Employee:Department +---+---+ +---+---+ |ColumnName|Type| |ColumnName|Type| +---+---+ +---+---+ | id | int | | id | int...
com/problems/consecutive-available-seats/solution/lian-xu-kong-yu-zuo-wei-by-ya-ya-50/ 20 销售员(left join可以连续用) 我 select NAME from salesperson where sales_id not in ( select sales_id from orders where com_id in (select com_id from company where name = 'RED') ) 网友 SELECT S...
LeetCode-SQL-Solutions Description The SQL 50 on LeetCode provided an extensive collection of SQL problems covering a wide range of concepts and techniques. This challenge included easy, medium and hard level questions from various topics like- Selects Basic Joins Basic Aggregate Functions Sorting an...
Problems Contest Discuss Interview Store Study PlanSee all Array1872 String776 Hash Table682 Dynamic Programming573 Math565 Sorting445 Greedy406 Depth-First Search315 Binary Search303 Database301 Matrix250 Breadth-First Search241 Tree241 Bit Manipulation234 Two Pointers216 Prefix Sum196 Heap (Priority...
海量技术面试题库,拥有算法、数据结构、系统设计等 1000+题目,帮助你高效提升编程技能,轻松拿下世界 IT 名企 Dream Offer。
|584|[Find Customer Referee](https://leetcode.com/problems/find-customer-referee)|$\color{green}{\textsf{Easy}}$|[MySQL](https://github.com/xxxVitoxxx/leetcode/blob/main/584.find_customer_referee/main.sql)| |595|[Big Countries](https://leetcode.com/problems/big-countries)|$\color{gre...
com/problems/shortest-completing-word 著作权归领扣网络所有。商业转载请联系官方授权,非商业转载请注明出处。 题解 代码语言:javascript 代码运行次数:0 运行 AI代码解释 class Solution { public String shortestCompletingWord(String licensePlate, String[] words) { Map<Character,Integer> charCountMap = new ...
https://leetcode-cn.com/problems/count-student-number-in-departments/ 一所大学有 2 个数据表,分别是 student 和 department ,这两个表保存着每个专业的学生数据和院系数据。 写一个查询语句,查询 department 表中每个专业的学生人数 (即使没有学生的专业也需列出)。
《代码随想录》LeetCode 刷题攻略:200道经典题目刷题顺序,共60w字的详细图解,视频难点剖析,50余张思维导图,支持C++,Java,Python,Go,JavaScript等多语言版本,从此算法学习不再迷茫!🔥🔥 来看看,你会发现相见恨晚!🚀