C / C++ / MFC

#include <iostream>
#include <stdlib.h>

using namespace std;

class Cpolygon
{
    protected:
    int width, height;
    public:
      void setvalues (int a, int b)
      {
          width=a;
          height=b;      
} 
};   

class Crectangle:public Cpolygon
{
    public:
        int area ()
        {
            return(width*height);
        }    
};

class Ctriagle:public Cpolygon
{
    public:
        int area()
        {
            return((width*height)/2);
        }
    };
            
int main(int argc, char *argv[])
{
 
 Crectangle rect;
 Ctriagle tril;
 
 Cpolygon *Poly1 =&rect;
 Cpolygon *Poly2 =&tril;

 Poly1->setvalues(4,5);
 Poly2->setvalues(4,5);
 
 
 cout<<Poly1->area()<<endl;
 cout<<Poly2->area()<<endl;
   
  system("PAUSE");	
  return 0;
}

Cpolygon *Poly1 =▭
 Cpolygon *Poly2 =&tril;

Cpolygon *Poly;

Poly->setvalues(4,5);

Crectangle *rect;
 Ctriagle *tril;

 cout<<rect->area()<<endl;
 cout<<tril->area()<<endl;

int Circle1 [20];


    for
    (Circle1=0; Circle1<15; Circle1++)
{
   
    glPushMatrix();
    glTranslatef(d+28,455,1);
        random_generator(0,3);
        if (randomValue == 0)
{
    glColor3f(0,.5,0);

}
        else if (randomValue == 1)
{
    glColor3f(.5,0,0);

}
        else
{
    glColor3f(0,0,.5);

}
    glLineWidth(1.0);
    drawCircle(14,200);
    glPopMatrix();
}

(Circle1=0; Circle1<15; Circle1++)