leetcode
I'm doing code challenging with leetcode|lettcode-cn which is a popular web site. I'm trying to improve my programming skills.
Algorithm
Math
- 1.两数之和
- 2.两数相加
- 3.无重复字符的最长字串
- 4.整数反转
- 9.回文数
- 13.罗马数字转整数
- 14.最长公共前缀
- 20.有效的括号
- 21.合并两个有序链表
- 26.删除排序数组中重复项
- 27.移除元素
- 28.实现 strStr()
SQL
- 175 Conbine Two Tables
- 176 Second highest Salary
- 178 Rank Scores
- 180 Consecutive Numbers
- 181 Employees Earning More Than Their Managers
- 182 Duplicate Emails
- 183 Customers Who Never Order
- 184 Department Highest Salary
- 185 Department Top Three Salaries
- 196 Delete Duplicate Emails
- 197 Rising Temperature
- 262 Trips And Users
- 595 Big Countries
- 596 Classes More Than Five Students
- 601 Human Traffic Of Stadium
- 620 Not Boring Movies
- 626 Exchange Seats
- 627 Swap Salary
- 1179 Reformat Department Table