#include <iostream>

using namespace std;

#define PI 3.14159
class shape
{
    public:
    virtual int area() const=0;
    virtual void show()=0;
};
class rectangle : public shape
{
    public:
    int _with;
    int _height;
    rectangle(int with,int height):_with(with),_height(height){}
    int area()const
    {
        return _with*_height;
    }
    void show()
    {
        cout<<"rectangle: with:"<<_with<<" height:"<<_height<<endl;
        cout <<"area :"<<area()<<endl;
    }
    bool operator ==(const rectangle &a)
    {
        if(this->area()==a.area())
        return 1;
        else
        return 0;
    }
    bool operator >(const rectangle &a)
    {
        if(this->area()>a.area())
        return 1;
        else
        return 0;
    }
    bool operator <(const rectangle &a)
    {
        if(this->area()<a.area())
        return 1;
        else
        return 0;
    }
    ~rectangle(){}
};
class ellipse: public shape
{
    public:
    int _with;
    int _height;
    ellipse(int with,int height):_with(with),_height(height){}
    int area()const
    {
        return PI*_with*_height;
    }
    void show()
    {
        cout<<"ellipse: with:"<<_with<<" height:"<<_height<<endl;
        cout <<"area :"<<area()<<endl;
    }
    bool operator ==(const ellipse &a)
    {
        if(this->area()==a.area())
        return 1;
        else
        return 0;
    }
    bool operator >(const ellipse &a)
    {
        if(this->area()>a.area())
        return 1;
        else
        return 0;
    }
    bool operator <(const ellipse &a)
    {
        if(this->area()<a.area())
        return 1;
        else
        return 0;
    }
    ~ellipse(){}

};

int main()
{
    //cout << "Hello world!" << endl;
    int a=0,b=0;
    cout<<"矩形"<<endl;
    cout<<"宽度 高度"<<endl;

    rectangle **p;
    p=new rectangle*[3];
    for(int i=0;i<3;i++)
    {
        cin>>a>>b;
        p[i]=new rectangle(a, b);
    }

    cout<<"椭圆"<<endl;
    cout<<"外接矩形宽度 外接矩形高度"<<endl;

    ellipse **q;
    q=new ellipse*[3];
    for(int i=0;i<3;i++)
    {
        cin>>a>>b;
        q[i]=new ellipse(a, b);
    }
    p[2]->show(),p[1]->show();
    cout<<p[2]->area()<<endl<<p[1]->area()<<endl;
    cout<<(*(p[2])==*(p[1]))<<endl;
    /*
    ellipse a(5,3);
    ellipse b(7,5),c(9,6);
    cout<<" a=b "<<(a==b)<<" a<b "<<(a<b)<<" a>b "<<(a>b)<<endl;
    */
    return 0;
}