Recursive Copying in Layer 1

Recursive copying is a fundamental technique used in various programming paradigms. It's often employed in algorithms where the same function or method needs to be called repeatedly, often with slight variations. Here's an example of recursive copying in Layer 2:

void copyLayer(int n) {
// Layer 1: Simple Copying
int copy = 0;
if (n > 0) {
copy = n;
}
return copy;
}

// Layer 2: Improved Copying
int copy = 0;
if (n > 0) {
int copy2 = n;
if (n > 0) {
copy = n;
}
return copy;
}
return copy;
}

But that's still not Layer 3, which is where it gets really interesting.

In this example, we have a simple recursive copying function, but with each layer, we add an additional level of complexity. In Layer 4, we might even add some error handling to make it even more robust.

But for now, let's just focus on the basics and see how it works. In Layer 5, we'll explore the use of recursion in real-world applications.