Since iterative solutions often use loop variables and recursive solutions do not, the recursive solution is usually more memory efficient (uses less memory) than the equivalent iterative solution.

Question

Quizplus · Accepted Answer

Recursive solutions often require more memory because each function call creates a new stack frame, which includes local variables and parameters. This can lead to stack overflow errors for large inputs. On the other hand, iterative solutions do not create new stack frames and can use less memory.

Since Iterative Solutions Often Use Loop Variables and Recursive Solutions