template<class T, class Compare>
inline const T& max(const T& a, const T& b, Compare comp)
{
  return comp(a, b) ? b : a;
}

  template<class T, class Compare>
inline const T& min(const T& a, const T& b, Compare comp)
{
  return comp(b, a) ? b : a;
}

bool int_less(int a, int b)
{
  return a < b;
}
int main()
{
  int a = 10;
  int b = 20;
  int result;
  result = max(a, b, int_less);
  cout << "max(a, b): " << result << endl;
  result = min(a, b, int_less);
  cout << "min(a, b): " << result << endl;
  return 0;
}