Answer:
The following c code has the maxR function as the calculator of planet radius.
Code:
#include<iostream>
#include<string>
using namespace std;
//if is not asked to import a math library, it can be used the following Pi value.
const double PI = 3.14;
class Planet
{
private:
string planet;
double r;
public:
Planet ()
{
this->planet = "";
this->r = 0.0;
}
Planet (string name, double r)
{
this->planet = name;
this->r = r;
}
string collectName () const
{
return this->planet;
}
double collectR () const
{
return this->r;
}
double collectVolume () const
{
return 4 * r * r * r * PI / 3;
}
};
int
maxR (Planet * planets, int s)
{
double maxR = 0;
int index_of_max_r = -1;
for (int index = 0; index < s; index++)
{
if (planets[index].collectR () > maxR)
{
maxR = planets[index].collectR ();
index_of_max_r = index;
}
}
return index_of_max_r;
}
int
main ()
{
Planet planets[5];
planets[0] = Planet ("On A Cob Planet", 1234);
planets[1] = Planet ("Bird World", 4321);
int idx = maxR (planets, 2);
cout << planets[idx].collectName () << endl;
cout << planets[idx].collectR () << endl;
cout << planets[idx].collectVolume () << endl;
}
