52. Area and Perimeter of Rectangle C++

#include <iostream>

using namespace std;

class Rectangle
{
public:
    Rectangle(double w, double h) : width(w), height(h) {}

    double perimeter() const
    {
        return 2 * (width + height);
    }

    double area() const
    {
        return width * height;
    }

private:
    double width, height;
};

int main()
{
    double w, h;
    cin >> w >> h;

    Rectangle rect(w, h);

    cout << rect.area() << endl << rect.perimeter() << endl;

    return 0;
}