#include<iostream.h>
#include<conio.h>
#include<bios.h>
#include<string.h>
#include<stdio.h>
#include<iostream.h>

class rationnel
{
private:
int num,denum;
public:
rationnel()
{
num=0;
denum=1;
}
rationnel(int a, int b)
{
 num=a;
 denum=b;
}
friend ostream & operator<<(ostream & f, rationnel & c)
   {
    gotoxy(50,10);
    cout<<c.num;
    gotoxy(48,11);
    cout<<"----";
    gotoxy(50,12);
    cout<<c.denum;
    return f;
   }
friend istream & operator>>(istream & f, rationnel & c)
{   int x=30;
    gotoxy(x,10);
    cout<<".";
    gotoxy(x-2,11);
    cout<<"----";
    gotoxy(x,12);
    cout<<".";
    gotoxy(x,10);
    cin>>c.num;
    gotoxy(x,12);
    cin>>c.denum;
    return f;
}
rationnel operator+(rationnel);
rationnel operator-(rationnel);
rationnel operator*(rationnel);
rationnel operator/(rationnel);
rationnel operator+=(rationnel);
rationnel operator-=(rationnel);
rationnel operator*=(rationnel);
rationnel operator/=(rationnel);
int operator==(rationnel);
int operator!=(rationnel);
int operator>(rationnel);
int operator<(rationnel);
rationnel operator>=(rationnel);
rationnel operator<=(rationnel);
};

rationnel rationnel::operator+(rationnel rati)
	 {
	 rationnel res;
	 res.denum=denum*rati.denum;
	 res.num=(num*rati.denum)+(rati.num*denum);
	 return res;
	 }

rationnel rationnel::operator-(rationnel rati)
	 {
	 rationnel res;
	 res.denum=denum*rati.denum;
	 res.num=(num*rati.denum)-(rati.num*denum);
	 return res;
	 }

rationnel rationnel::operator*(rationnel rati)
	 {
	 rationnel res;
	 res.denum=denum*rati.denum;
	 res.num=num*rati.num;
	 return res;
	 }


rationnel rationnel::operator/(rationnel rati)
	 {
	 rationnel res;
	 res.denum=denum*rati.num;
	 res.num=num*rati.denum;
	 return res;
	 }

    /*
rationnel rationnel::operator+=(rationnel rati)
	 {
	 rationnel res;
	 res.denum=denum*rati.denum;
	 res.num=num*rati.num;
	 return res;
	 }

rationnel rationnel::operator+=(rationnel rati)
{
rationnel res;
res.denum=res.denum*rati.denum;
res.num=(res.num*rati.denum)+(res.denum*rati.num);
return res;
}

rationnel rationnel::operator-=(rationnel rati)
{
rationnel res;
res.denum=res.denum*rati.denum;
res.num=(res.num*rati.denum)-(res.denum*rati.num);
return res;
}


rationnel rationnel::operator*=(rationnel rati)
{
rationnel res;
res.denum=res.denum*rati.denum;
res.num=res.num*rati.num;
return res;
}


rationnel rationnel::operator/=(rationnel rati)
{
rationnel res;
res.denum=res.denum*rati.num;
res.num=res.num*rati.denum;
return res;
}

int rationnel::operator==(rationnel rati)
{
if ((num/denum)==(rati.num/rati.denum)) return 1;
else
   return 0;
}

int rationnel::operator!=(rationnel rati)
{
if ((num/denum)!=(rati.num/rati.denum))
   return 1;
else
  return 0;
}

int rationnel::operator >(rationne rati)
{
if ((num/denum)>(rati.num/rati.denum))
   return 1;
else
  return 0;
}

int rationnel::operator<(rationne rati)
{
if ((num/denum)<(rati.num/rati.denum))
   return 1;
else
  return 0;
}

int rationnel::operator>=(rationne rati)
{
if ((num/denum)>=(rati.num/rati.denum))
   return 1;
else
  return 0;
}


int rationnel::operator<=(rationne rati)
{
if ((num/denum)<=(rati.num/rati.denum))
   return 1;
else
  return 0;
} */
   /****   MENU   ****/


   void menu()
{int selec=0;char rep;
clrscr();

_setcursortype(_NOCURSOR);
do{
if(selec==0)
	{
	    textcolor(13);
	    textbackground(15);
	    gotoxy(35,12);
	    cprintf("1   OPERATOR +");
	}
	else

	    {
	    textcolor(6);
	    textbackground(0);
	    gotoxy(35,12);
	    cprintf("1   OPERATOR +");
	    }

if(selec==1)
	{
	    textcolor(13);
	    textbackground(15);
	    gotoxy(35,13);
	    cprintf("2   OPERATOR -");
	}
	else
	    {
	    textcolor(6);
	    textbackground(0);
	    gotoxy(35,13);
	    cprintf("2   OPERATOR -");
	    }

if(selec==2)
	{
	    textcolor(13);
	    textbackground(15);
	    gotoxy(35,14);
	    cprintf("3   OPERATOR *");
	}
	else
	    {
	    textcolor(6);
	    textbackground(0);
	    gotoxy(35,14);
	    cprintf("3   OPERATOR *");
	    }
if(selec==3)
	{
	    textcolor(13);
	    textbackground(15);
	    gotoxy(35,15);
	    cprintf("4   OPERATOR /");
	}
	else
	    {
	    textcolor(6);
	    textbackground(0);
	    gotoxy(35,15);
	    cprintf("4   OPERATOR /");
	    }
       if(selec==4)
	{
	    textcolor(13);
	    textbackground(15);
	    gotoxy(35,15);
	    cprintf("5   QUITTER");
	}
	else
	    {
	    textcolor(6);
	    textbackground(0);
	    gotoxy(35,15);
	    cprintf("5   QUITTER");
	    }
     switch(rep=getch()){
	case '8':{selec--;break;}
	case '2':{selec++;break;}
	case 'O' :{if(selec==0)
		rationnel::operator+(rationnel);
	       if(selec==1)
			rationnel::operator-(rationnel);
	       if(selec==2)
			rationnel::operator*(rationnel);
          if(selec==3)
          rationnel::operator/(rationnel);
	       if(selec==4)
			rep='v';break;}
	}
	if(selec<0)
		selec=4;
	else
		if(selec>4)
			selec=0;
	}
 while(rep!='v');}
void main()
{
 rationnel a;
 /*a.operator+(3,4);*/
menu();
}