Рекурсия

#include <iostream>
using namespace std;
float programm1(int a, int b, int h, int c)
{
float y=0;
while (a<=b)
{
y = a/(c+y);
a = a+h;
}
cout<<y <<endl;
return y;
}
 
int main() 
{
    int x;
cin>>x;
if (x!= -2)
{
float q =  programm1(2,8,2,x)+programm1(4,13,3,x);
cout <<"y = "<<q;
}else 
{
cout<<"neravno" <<endl;
} 
return 0;
 
}

#include <iostream>
using namespace std;
 
double repa(double x, int n1, int dn, int n2) {
 if (n1 <= n2) return n2;
 return n1 / (x + repa(x, n1 + dn, dn, n2));
}
 
int main() {
 double x = 1;
 cout << repa(x,8,-2,1) + repa(2*x, 13,-3,1);
 return 0;
}

#include <iostream>
using namespace std;
float programm1(int a, int b, int h, int x)
{
    float y, yn = x + 1;
    while (a <= b)
    {
        y = a / yn;
        yn = y + x;
        a = a + h;
    }
    cout << y << endl;
    return y;
}
 
int main()
{
    int x;
    cin >> x;
    if (x != -1 && x != -0.5)
    {
        float q = programm1(2, 8, 2, x) + programm1(4, 13, 3, 2*x);
        cout << "y = " << q;
    }
    else
    {
        cout << "neravno" << endl;
    }
    return 0;
 
}