What are the performance differences between iterative and recursive algorithms?

What are the performance differences between iterative and recursive algorithms?

Iterative algorithms use loops to repeat operations, while recursive algorithms call themselves. Generally, iterative solutions are more memory efficient.

Can you give me an example of each?

Sure! For an iterative example, consider calculating the factorial of a number using a loop. For recursion, the factorial can be calculated by calling the function with a decremented value until it reaches 1.

Which one is faster?

Iterative algorithms are usually faster due to lower overhead, but it can depend on the specific problem and implementation.

Are there any cases where recursion is preferred?

Yes, recursion is often preferred for problems that can be divided into smaller subproblems, like tree traversals or certain dynamic programming scenarios.