In this video, we solve LeetCode Problem #1 — Two Sum.
You’ll learn:
Brute force approach
Optimized HashMap solution
Step-by-step dry run
Time & space complexity
Interview tips and common mistakes
Problem Statement:
Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to the target.
Example:
Input: nums = [2,7,11,15], target = 9
Output: [0,1]
Topics Covered:
Arrays
HashMap / Hash Table
Optimization techniques
#leetcode #twosum #dsa #codinginterview #python #java #cpp #algorithms
