#include <iostream>
using namespace std;

class Shape {
public:
 virtual void area() = 0;
};


class Circle : public Shape {
private:
 double radius;

public:
 Circle(double r): radius(r){}

 void area() {
     cout << "Circle area: "<< 3.14 * radius * radius << endl;
 }
};


class Rectangle : public Shape {
private:
 double length;
 double width;

public:
 Rectangle(double l, double w): length(l), width(w) {}

 void area() {
 cout << "Rectangle area: " << length * width << endl;
 }
};


int main() {
    Circle circle(5);
    Rectangle rectangle(4, 6);
   
   circle.area();
   rectangle.area();
   
 return 0;
}

#include<iostream>
using namespace std;
class Rectangle
{
protected:
    double lenght,width;
public:
    Rectangle(double l,double w):lenght(l),width(w){}
};

class cuboid : public Rectangle
{
double height;
public:
    cuboid(double l,double w,double h):Rectangle(l,w),height(h){}
    void volume()
    {
        cout<<"area of cuboid : "<<lenght*width*height<<endl;
    }
};

int main()
{
    cuboid r(2.2,10.5,5.2);
    r.volume();
}

#include<iostream>
using namespace std;

class Cars {
private:
    string brandN;
    int maxspeed, fuelC, safetyR;
public:
    Cars(string b,int m,int f,int s):brandN(b),maxspeed(m),fuelC(f),safetyR(s){}
    bool operator>(const Cars& other) const {
        int pointA=0, pointB=0;
        if (maxspeed>other.maxspeed) {
            pointA++;
        } else {
            pointB++;
        }
        if (fuelC<other.fuelC) {
            pointA++;
        } else {
            pointB++;
        }
        if (safetyR>other.safetyR) {
            pointA++;
        } else {
            pointB++;
        }
        return pointA > pointB;
    }
};

int main() {
    Cars BMW("BMW",300,5,10);
    Cars KIA("KIA",200,4,5);
    if(BMW > KIA) {
        cout <<"BMW has a higher assessment"<< endl;
    }else{
        cout <<"KIA has a higher assessment"<< endl;
    }
    return 0;
}