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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class box{
  5.  
  6. public:
  7.     box(int a = 0, int b = 0, int c = 0) : h(a), l(b), w(c) {}
  8.  
  9.     double volume() const { return l*h*w; }
  10.  
  11.     bool operator > (const box& a) const { return volume() > a.volume(); }
  12.  
  13.     friend ostream& operator<<(ostream&os, const box& b);
  14.  
  15. private:
  16.     double h;
  17.     double l;
  18.     double w;
  19.  
  20. };
  21.  
  22. ostream& operator<<(ostream& os, const box& b)
  23. {
  24.     return os << b.h << " x " << b.l << " x " << b.w;
  25. }
  26.  
  27. int main(){
  28.  
  29.     //Question #2
  30.     box x(1, 2, 3), g;
  31.     box f(7, 8, 120), m(8, 6, 4);
  32.  
  33.  
  34.     cout << "Comparing g (" << g << ") and x (" << x << ")\n";
  35.  
  36.     cout << " g (" << g.volume() << ") ";
  37.     if (g > x)
  38.         cout << "is greater ";
  39.     else
  40.         cout << "is not greater ";
  41.     cout << "than x (" << x.volume() << ")\n";
  42.  
  43.  
  44.     cout << "\nComparing m (" << m << ") and f (" << f << ")\n";
  45.  
  46.     cout << "m (" << m.volume() << ") ";
  47.     if (m > f)
  48.         cout << "is greater " ;
  49.     else
  50.         cout << "is not greater " ;
  51.     cout << "than f (" << f.volume() << ")\n";
  52. }
Success #stdin #stdout 0s 3340KB
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Standard input is empty
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Comparing g (0 x 0 x 0) and x (1 x 2 x 3)
 g (0) is not greater than x (6)

Comparing m (8 x 6 x 4) and f (7 x 8 x 120)
m (192) is not greater than f (6720)
https://ideone.com/0noeAw
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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