#include <iostream.h>
#include <conio.h>
#include <typeinfo>
class point
{
  protected:
   int x,y;
  public:
   point()
   {
    x=0;
    y=0;
   }
void getpoint()
 {
  cout<<"\nEnter the coordinates:";
  cin>>x;
  cin>>y;
}
void displaypoint()
{
  cout<<"\nCoordinates are ("<<x<<","<<y<<")";
}
};
class shape: public point
{
  protected:
    float vertices,area,perimeter ;
  public:
   void getdetails()
   {
    getpoint();
   }
   void virtual get(){}
   void virtual fnarea(){}
   void virtual fnperimeter(){}
   void displayarea()
   {
     cout<<"\nArea="<<area;
   }
  void displayperi()
  {
   cout<<"\nPerimeter="<<perimeter;
  }
};
class square: public shape
{
  float side;
  void get()
  {
  cout<<"\n the square object has been chosen randomly";
  cout<<"Enter the length of the side of the square: ";
  cin>>side;
  }
  void fnarea()
  {
   area=side*side;
  }
  void fnperimeter()
  {
   perimeter=4*side;
  }
};
class rectangle:public shape
{
    float l,b;
  public:
   void get()
   {
    cout<<"\n the rectangle object has been chosen randomly";
    cout<<"\nEnter the length:";
    cin>>l;
    cout<<"\nEnter the breadth:";
    cin>>b;
   }
  void fnarea()
  {
   area=l*b;
  }
  void fnperimeter()
  {
   perimeter=2*(l+b);
  }
};
class circle:public shape
{
   float radius;
  public:
   void get()
   {
    cout<<"\n the circle object has been chosen randomly";
    cout<<"\nEnter the Radius:";
    cin>>radius;
   }
   void fnarea()
   {
    area=3.14*radius*radius;
   }
   void fnperimeter()
  {
    perimeter=2*3.14*radius;
  }
};
class triangle: public shape
{
    float base,height,b,c;
  public:
    void get()
    {
     cout<<"\n the triangle object has been chosen randomly";
     cout<<"\nEnter the base:";
     cin>>base;
     cout<<"\nEnter the height:";
     cin>>height;
     cout<<"\nEnter the other two sides:";
     cin>>b>>c;
    }
   void fnarea()
   {
    area=1/2*(base*height);
   }
   void fnperimeter()
   {
    perimeter=base+b+c;
   }
};
/*class ellipse:public shape
{
float majoraxis,minoraxis;
public:
void get()
{
cout<<"\nEnter the major axis";
cin>>majoraxis;
cout<<"\nEnter the minor axis";
cin>>minoraxis;
}
void fnarea()
{
area=3.14*majoraxis*minoraxis;
}
void fnperimeter()
{
perimeter=(majoraxis*majoraxis+minoraxis*minoraxis)/2;
}
};
class polygon:public shape
{
int no;
float length;
public:
void get()
{
cout<<"\nEnter the no of vertices";
cin>>no;
cout<<"\nEnter the length of the side";
cin>>length;
}
void fnperimeter()
{
perimeter=no*length;
}
};*/
int main()
{
   cout<<"\n A number will be chosen at random and as per the random digit the details of either a\n square, a rectangle, a triangle or a circle will be printed";
   int ch,loop,r;
   loop=0;
   shape *ptr;
   square sq;
   rectangle rect;
   triangle tri;
   circle cir;
   /*ellipse ell;
   polygon poly;*/
   while(loop!=1)
   {
     /*cout<<"\n1.Square\n2.Rectangle\n3.Circle\n4.Triangle\n5.Exit";
     cout<<"\nEnter your choice:";

     cin>>ch;*/
     ch=(rand()%7)+1;
     switch(ch)
     {
      case 1:
            ptr=&sq;
            break;
      case 2:
           ptr=&rect;
           break;
      case 3:
           ptr=&cir;
           break;
      /*case 4:
           ptr=&ell;
           break;*/
      case 4:
           ptr=&tri;
           break;
      /*case 5:
           ptr=&poly;
           break;*/
      case 5:
           loop=1;
           break;
      /*default:
           cout<<"\nwrong choice";*/
       }
/* if(typeid(*ptr)==typeid(poly))
{
  ptr->getdetails();
  ptr->get();
  ptr->fnperimeter();
  ptr->displayperi();
 }
else
{*/
  ptr->getdetails();
  ptr->get();
  ptr->fnarea();
  ptr->fnperimeter();
  ptr->displayarea();
  ptr->displayperi();
 //}
}
return 0;
}