Two Sum with an Optimized Solution

Coming back from my previous article: two sum problem I mentioned that I would show another solution to reduce time complexity. In the previous approach, I used two nested loops to check every possible pair of numbers in the array. This is essentially a brute-force method, where we try all combinations to find two numbers that add up to the target. In this article, we will use a different approach. Instead of checking every pair, we use a hash map (object in JavaScript) to reduce the number of s