LeetCode 1683. Invalid Tweets
Description https://leetcode.com/problems/invalid-tweets/ Table: Tweets +—————-+———+ | Column Name | Type | +—————-+———+ | tweet_id | int | | content | varchar…
Tag: Uber Interview Question
LeetCode 24. Swap Nodes in Pairs
Description https://leetcode.com/problems/swap-nodes-in-pairs/ Given a linked list, swap every two adjacent nodes and return its head. Example 1: Input: head = [1,2,3,4]…
LeetCode 1464. Maximum Product of Two Elements in an Array
Description https://leetcode.com/problems/maximum-product-of-two-elements-in-an-array/ Given the array of integers nums, you will choose two different indices i and j of that array. Return the maximum value of(nums[i]-1)*(nums[j]-1). Example…
LeetCode 509. Fibonacci Number
Description https://leetcode.com/problems/fibonacci-number/ The Fibonacci numbers, commonly denoted F(n) form a sequence, called the Fibonacci sequence, such that each number is the sum of the…
LeetCode 410. Split Array Largest Sum
Description https://leetcode.com/problems/split-array-largest-sum/ Given an array nums which consists of non-negative integers and an integer m, you can split the array into m non-empty continuous subarrays.…
LeetCode 315. Count of Smaller Numbers After Self
Description https://leetcode.com/problems/count-of-smaller-numbers-after-self/ You are given an integer array nums and you have to return a new counts array. The counts array has the property where counts[i] is the…
LeetCode 833. Find And Replace in String
Description https://leetcode.com/problems/find-and-replace-in-string/ To some string S, we will perform some replacement operations that replace groups of letters with new ones (not necessarily the…
LeetCode 951. Flip Equivalent Binary Trees
Description https://leetcode.com/problems/flip-equivalent-binary-trees/ For a binary tree T, we can define a flip operation as follows: choose any node, and swap the left and…
LeetCode 359. Logger Rate Limiter
Description https://leetcode.com/problems/logger-rate-limiter/ Design a logger system that receives a stream of messages along with their timestamps. Each unique message should only be…
LeetCode 731. My Calendar II
Description https://leetcode.com/problems/my-calendar-ii/ Implement a MyCalendarTwo class to store your events. A new event can be added if adding the event will not…