1. Two Sum Easy Given an array of integers nums  and an integer target...

7. Reverse Integer Medium Given a signed 32-bit integer x , return x ...

27. Remove Element Easy Given an integer array nums and an integer val...

88. Merge Sorted Array Easy You are given two integer arrays nums1 and ...

175. Combine Two Tables Easy Table: Person +-------------+---------+ | Column Name...

181. Employees Earning More Than Their Managers Easy Table: Employee +-------------+---------+...

182. Duplicate Emails Easy Table: Person +-------------+---------+ | Column Name |...

183. Customers Who Never Order Easy Table: Customers +-------------+---------+ | Column...

217. Contains Duplicate Easy Given an integer array nums , return true if...