Answer to Question #288224 in C++ for zxc

Question

•Given an input number, print a pattern such that you subtract 3 from the input number and print it until it reaches zero or to a negative value. After that, you will add 3 to the number and repeat until it reaches the same input value

•E.g: n= 15 Output = 15 12 9 6 3 0 3 6 9 12 15

•E.g: n = 8 Output = 8 5 2 -1 2 5 8

Note: You are supposed to use the recursive method to solve this question.

You cannot use a loop for this task!

Answer 1

#include <iostream> 

using namespace std; 

void RecursiveOutput(int n)
{
	cout<<n<<" ";
	static int start=n;
	static bool state=false;
	if(n<=0)state=true;
	if(!state)
	{
		n-=3;
		RecursiveOutput(n);
	}
	else if(state&&n<start)
	{
		n+=3;
		RecursiveOutput(n);
	}
}

int main()
{
	int num;
	cout<<"Please, enter an integer: ";
	cin>>num;
	RecursiveOutput(num);
	
}