struct

#include <iostream>
#include <cmath>
#include <cstring>

using namespace std;


struct Rect
{
    double length;
    double width;

    void create(double side1, double side2)
    {
        length = side1;
        width = side2;
    }
    void print()
    {
        cout << length << " " << width << endl;
    }

    double rad()
    {
        double diagonal;
        double radius;
        diagonal = sqrt(length*length + width*width);
        radius = diagonal/2;
        return radius;
    }
    double area()
    {
        return length*width;
    }
    double perimeter ()
    {
        return 2*(length + width);
    }

};


struct Planet
{
    char name[];
    double distance;
    double diameter;
    double mass;

    void create(char *name_, double distance_, double diameter_, double mass_)
    {
        strcpy(name, name_);
        diameter = diameter_;
        mass = mass_;
        distance = distance_;

    }

    void print()
    {
        cout << "name: " << name << endl
             << "diameter: " << diameter << endl
             << "mass: " << mass << endl
             << "distance: " << distance << endl;
    }

    double time()
    {
        return distance/299792;
    }

};




int main()
{

  /*
    Rect r;
    r.create(5, 7);
    r.print();
    cout << "radius: " << r.rad()<< endl;
    cout << "area: " << r.area() << endl;
    cout << "perimeter: " << r.perimeter() << endl;

*/
    Planet pluto;
    pluto.create("pluto", 2305982, 1029, 23059);
    cout << "speed of ligth: " << pluto.time();

    Planet milkyWay[5];
    milkyWay[0].create



    return 0;
}