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Boost your coding interview skills and confidence by practicing real interview questions with LeetCode. Our platform offers a range of essential problems for practice, as well as the latest questions being asked by top-tier companies.
简单 184. 部门工资最高的员工 53.7% 中等 185. 部门工资前三高的所有员工 56.4% 困难 196. 删除重复的电子邮箱 67.8% 简单 197. 上升的温度 54.2% 简单 262. 行程和用户 41.2% 困难 511. 游戏玩法分析 I 71.5% 简单 512. 游戏玩法分析 II 54.8% 简单 534. 游戏玩法分析 III 70.5% 中等 550. 游戏玩...
leetcode-cn.com/problem # 解题思路:首先要将乘客或者司机是非禁止用户的行程筛选出来; # 接着按日期分组,统计各个日期总订单数; # 再判断按Status来统计其中取消的订单数量。 SELECT t.Request_at AS 'Day', ROUND((SUM(IF(t.Status='completed', 0, 1))) / COUNT(t.Status), 2) AS `Cancellation ...
sql表结构: Customers表: +---+---+ |Id|Name| +---+---+ |1|Joe| |2|Henry| |3|Sam| |4|Max| +---+---+ Orders表: +---+---+ |Id|CustomerId| +---+---+ |1|3| |2|1| +---+---+ 1. 2. 3. 4. 5. 6. 7...
1、LeetCode 题目太多,全部刷完肯定不是最好最有效的方式,其中涉及到的基本知识点来来回回就那些,同时有非常多的类似题,所以刷经典题,掌握这些经典题是最有效的学习方式。 2、从算法训练营第一期开始到现在的第十二期,吴师兄整理和迭代了非常多的刷题顺序,经过这两年的同学们的反馈,终于整理出一份我认为是最适...
218. 天际线问题 The Skyline Problem 🌟🌟🌟 Golang每日一练(leetDay0078) 存在重复元素 II\III ContainsDuplicate 219. 存在重复元素 II Contains Duplicate ii 🌟 220. 存在重复元素 III Contains Duplicate iii 🌟🌟🌟 Golang每日一练(leetDay0079) 最大正方形、完全二叉树节点数 221. 最大正方...
You are not suppose to use the library’s sort function for this problem. Solution: 典型的Partition题, 最简单的思路是先对0 和 大于 0 做一次partition, 对1和2做一次partition。这样虽然时间复杂度依然是O(n), 但是还有一...
and other computer science fundamentals. LeetCode helps users enhance their coding skills, prepare for technical interviews, and engage in programming contests. This topic explores how LeetCode equips individuals with the tools to improve their coding proficiency and problem-solving abilities in a compet...
https://leetcode-cn.com/problemset/database/ 题目都是leetcode 上了可以点击题目会有相应的链接 由于个人比较喜欢用开窗函数,所以都优先用了开窗 ,当然这些并不一定都是最优解,答案仅供参考 每道题后面都应相应的难度等级,如果没时间做的话 可以在leetcode 按出题频率刷题 我是安顺序刷的题,后续还会继续更新...