write a c++ program to define a class for 3 dimensional points. write necessary member function for accepting and the point object overload the following

/*
write a c++ program to define a class for 3 dimensional points. write necessary member function
for accepting and  the point object overload the following
operator
operator        example          purpose
+(Binary)    p3=p1+p2        multiplies coordinate of point p1 with p2
-(Binary)    p3=p2-p1;    substract coordinates p1 from p2
*/
#include<iostream.h>
#include<conio.h>
#include<string.h>
int i=0;
class binary
{
int p;
public:void accept()
       {
       i=i+1;
       cout<<"enter the dimentional point "<<i<<":-";
       cin>>p;
       }
       void operator *(binary p2)
       {
       int ans;
       ans=p*p2.p;
       cout<<"\nmultiplication of two cordinate point:-"<<ans;
       }
       void operator -(binary p2)
       {
       int ans;
       ans=p-p2.p;
       cout<<"\nsubstraction of two coordinaates point:-"<<ans;
       }
       };
int main()
{
binary p1,p2;
clrscr();
p1.accept();
p2.accept();
p1*p2;
p1-p2;
getch();
return 0;
}
/*
enter the dimentional point 1:-3
enter the dimentional point 2:-4

multiplication of two cordinate point:-12
substraction of two coordinaates point:--1
*/