Big O Growth Patterns Cheat Sheet

Now that you've finished Understanding Big O Notation and Algorithmic Complexity, you know why we care about algorithm complexity.

This lesson is the quick-reference layer: the patterns you should recognize almost automatically when reading code or proposing a solution.

In an interview, Big O is not about reciting math. It is about saying:

"As the input grows, this is the part of my algorithm that dominates."

That skill helps you move from brute force to better solutions without guessing.