структуры 2 - 11

#include <iostream>
using namespace std;
unsigned long F(short n, int x)
{
	if (n == -x)
		return 1;
	else
	{
		unsigned long n1 = 1, n2 = 2;
		for (short i = 3; i <= n; i++)
		{
			n = (n - 1) + 1;
			n1 = n2;
			n2 = n;
		}
		return n;
	}
}
unsigned long F_REC(short n, int x)
{
	if (n == -x)
		return 1;
	else
	{
		return F_REC(x / (n + x));
	}
}
int main()
{
	short n;
	int x;
	cout << "n= "; cin >> n;
	cout << "x= "; cin >> x;
	cout << "F_REC(" << n << ")= " << F_REC(n,x) << endl;
}