using factions type program to calculate the area and circumference of a circle note that c++

Question

using factions type program to calculate the area and circumference of a circle note that c++

Answer 1

#include <iostream>
using namespace std;

class abc;
class xyz
{
int x;
public:
void set input()
{ int i;
i=x;

}
friend void max(xyz m,abc n);

};
class abc
{
int y;
public:
void set input ()
{ int i;
i=y;
}
friend void max(xyz m,abc n);
};
void max (xyz m,abc n)
{
if (m.x>=n.y)
cout<<m.x;
else
cout<<n.y;
}
int main
{
abc m;
xyz n;
m.set input (10)
n.set input (20)

return 0;
}