#include <iostream>
#include <string>
#include <cstring>

using namespace std;

template<class T>
int poredi(T x, T y) {
  if (x < y)
    return -1;
  if (x > y)
    return 1;
  return 0;
}

int poredi (char *x, char *y) {
  return strcmp(x, y);
}

int poredi (const char *x, const char *y) {
  return strcmp(x, y);
}

template <class T>
class Par {
public:
  Par(T x, T y)
    :_prvi(x), _drugi(y)
  {}
  void pisi(ostream &ostr) const {
    ostr << "(" << _prvi << ", " << _drugi << ")";
  }
  void citaj(istream &istr) {
    istr >> _prvi >> _drugi;
  }
  T vratiPrvi() const {
    return _prvi;
  }
  T vratiDrugi() const {
    return _drugi;
  }
private:
  T _prvi;
  T _drugi;
};

template <class T>
ostream& operator<<(ostream& ostr, const Par<T>& p) {
  p.pisi(ostr);
  return ostr;
}

template <class T>
istream& operator>>(istream& istr, Par<T>& p) {
  p.citaj(istr);
  return istr;
}


int main() {
  int a = 2, b = 3;

  cout << poredi(a, b) << endl;

  float c = 3.3, d = 3.5;

  cout << poredi(c, d) << endl;

  char e = 'a', f = 'g';

  cout << poredi(e, f) << endl;

  string s = "mirko";

  cout << s << endl;
  cout << s.length() << endl;
  cout << s + s << endl;
  cout << (s < "rirko") << endl;

  cout << poredi(string("mirko"), string("spasic")) << endl;

  //puna sintaksa
  cout << poredi<int>(2,4) << endl;
  cout << poredi<float>(2,4) << endl;
  

  // skracena sintaksa
  cout << poredi(2,4) << endl;
  cout << poredi(6.3,4.1) << endl;


  // sintanska greska: cout << poredi(3, 2.1) << endl;
  cout << poredi<double>(3, 2.1) << endl;
  
  cout << poredi("spasic", "mirko")  << endl;

  Par<double> p(1,2);

  cout << p << endl;

  cin >> p;
  cout << p << endl;

  Par< Par<double> > p1(Par<double>(2,3), Par<double>(5.6, 1));

  cout << p1 << endl;

  return 0;
}