Two Sum Problem One LeetCode Using Python | 1. Two Sum 

Get the problem code at: marenah.com/two-sum-problem-one-leetcode-using-python-1-two-sum/
In this video, we tackle the Two Sum problem from LeetCode using Python. This problem is a classic algorithmic challenge where you need to find two numbers in a list that add up to a specific target. We'll walk through the problem statement, discuss the approach, and implement the solution step-by-step. Whether you're preparing for coding interviews or improving your problem-solving skills, this tutorial will help you understand the concept and enhance your coding proficiency. Join us as we solve the Two Sum problem and make coding fun and educational!
Recently, I tackled a classic coding challenge known as the "Two Sum" problem. Given an array of integers and a target value, the task was to find two numbers that add up to the target and return their indices. The challenge guarantees a single valid solution and disallows using the same element twice. To solve this efficiently, I utilized a hash map (or dictionary) to track the indices of the numbers encountered so far. As I iterated through the array, I calculated the difference between the target and the current number. If this difference was already in the hash map, I had found the solution and returned the stored index and the current index. This approach, with its O(n) time complexity, ensured a quick and optimal solution. Here's the final implementation in Python: