Stop Getting TLE On LeetCode: Big O Notation Explained

If you are grinding LeetCode blindly without understanding Time and Space Complexity, you will eventually hit a wall. Getting a Time Limit Exceeded (TLE) error means your code works, but it is not optimized. In this video, we break down Big O Notation, Time Complexity, and Space Complexity exactly how you need them for LeetCode and tech interviews. We cover how to calculate Big O on the fly, why dropping constants is crucial, and the secret to reading LeetCode constraints so you always know which algorithm to use before you even start typing. Connect with me: LinkedIn:   / ninad-walke   Instagram:   / techwithninad   GitHub: https://www.github.com/NinadWalke LeetCode: https://www.leetcode.com/u/ninad_walke Timestamps: 0:00 Introduction 0:24 What is Time and Space Complexity 3:08 The Big O Notation 6:33 Measuring Time and Space Complexity 9:35 Fixing your TLE (4 Easy Steps) 14:46 Outro