🔄 Recursion in C: A Practical Guide for Embedded Engineers 🪆 Recursion is like Russian nesting dolls—each function call opens a smaller version of the same problem until it reaches a base case. 📌 ...

Overlapping subproblems: The recursive solution solves the same subproblems repeatedly. (If subproblems don't overlap, it's just divide-and-conquer, like merge sort.) Optimal substructure: The optimal ...