The Two Faces of Recursion: Linear and Binary Approaches Explained

Master Recursion: One-Branch & Two-Branch Techniques

Hello guys, Preparing for coding interviews can feel overwhelming, especially when you realize how often recursion shows up in popular problems.

From binary trees to backtracking, recursion is one of those fundamental concepts that companies like Google, Meta, and Amazon love to test. If you don’t have a solid grip on it, even relatively simple problems…