Agoda : two sum coding interview
Two Sum is a programming question on LeetCode and very important for interviews. You are given an array of integers and a target value as the input. There are exactly two integers in the array which add up to the target value. You are required to return the indices of these 2 integers. Watch this video to learn 3 ways of solving this problem. You will learn a brute force solution, a solution using sorting, and a solution using Hash-map. Each of the solution has been explained with step by step animations and with a dry-run of the code so that it sticks in your mind forever.