LeetCode 1 - Two Sum Problem Explained with Java | Optimized Solution | Coding Interview Question

The Two Sum problem is one of the most common and fundamental problems asked in technical interviews. In this video, I explain how to solve the Two Sum problem step by step using Java.

📌 What You'll Learn in This Video:

Understanding the problem statement with examples.
Implementing the brute force approach.
Optimizing the solution using a HashMap for O(n) time complexity.
Walking through test cases and edge cases.
Comparing time of different approaches.
By the end of this video, you'll have a clear understanding of how to solve the Two Sum problem efficiently and be interview-ready!

💻 Code Examples:
Both brute force and optimized solutions are demonstrated with easy-to-follow explanations.

Problem Statement:
Given an array of integers nums and a target integer target, find the indices of the two numbers that add up to the target.
✔ Each input has exactly one solution.
✔ You may not use the same element twice.

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