LeetCode 912. Sort an Array
Description https://leetcode.com/problems/sort-an-array/ Given an array of integers nums, sort the array in ascending order. Example 1: Input: nums = [5,2,3,1] Output:…
Tag: Uber Interview Question
LeetCode 148. Sort List
Description https://leetcode.com/problems/shuffle-the-array/ Given the head of a linked list, return the list after sorting it in ascending order. Follow up: Can you sort the linked…
LeetCode 1581. Customer Who Visited but Did Not Make Any Transactions
Description https://leetcode.com/problems/customer-who-visited-but-did-not-make-any-transactions/ SQL Schema Table: Visits +————-+———+ | Column Name | Type | +————-+———+ | visit_id | int | | customer_id…
LeetCode 1350. Students With Invalid Departments
Description https://leetcode.com/problems/students-with-invalid-departments/ SQL Schema Table: Departments +—————+———+ | Column Name | Type | +—————+———+ | id | int | | name…
LeetCode 1119. Remove Vowels from a String
Description https://leetcode.com/problems/remove-vowels-from-a-string/ Given a string s, remove the vowels ‘a’, ‘e’, ‘i’, ‘o’, and ‘u’ from it, and return the new string. Example 1: Input: s =…
LeetCode 1470. Shuffle the Array
Description https://leetcode.com/problems/shuffle-the-array/ Given the array nums consisting of 2n elements in the form [x1,x2,…,xn,y1,y2,…,yn]. Return the array in the form [x1,y1,x2,y2,…,xn,yn]. Example 1: Input: nums =…
LeetCode 1693. Daily Leads and Partners
Description https://leetcode.com/problems/daily-leads-and-partners/ SQL Schema Table: DailySales +————-+———+ | Column Name | Type | +————-+———+ | date_id | date | | make_name…
LeetCode 1741. Find Total Time Spent by Each Employee
Description https://leetcode.com/problems/find-total-time-spent-by-each-employee/ SQL Schema Table: Employees +————-+——+ | Column Name | Type | +————-+——+ | emp_id | int | | event_day…
LeetCode 692. Top K Frequent Words
Description https://leetcode.com/problems/top-k-frequent-words/ Given a non-empty list of words, return the k most frequent elements. Your answer should be sorted by frequency from…
LeetCode 232. Implement Queue using Stacks
Description https://leetcode.com/problems/implement-queue-using-stacks/ Implement a first in first out (FIFO) queue using only two stacks. The implemented queue should support all…