#include <iostream>

using namespace std;

void swap(int x, int y) {
  int tmp;
  tmp = x;
  x = y;
  y = tmp;
}

void swap1(int *x, int *y) {
  int tmp;
  tmp = *x;
  *x = *y;
  *y = tmp;
}

void swap2(int &x, int &y) {
  int tmp;
  tmp = x;
  x = y;
  y = tmp;
}

inline int kvadrat(const int &x = 3) {
  return x * x;
}

inline double kvadrat(const double &x) {
  return x * x;
}


int main() {
  bool c = false;
  int i;
  
  cout << "Hello, world!" << endl;

  cout << c << endl;

  cout << "Unesi i: ";
  cin >> i;
  cout << "i = " << i << endl;

  double x(3.14);

  cout << "x = " << x << endl;

  int *p;
  p = new int(10);
  //*p = 10;
  cout << "*p = " << *p << endl;
  delete p;

  int *niz;
  niz = new int[10];
  for (int j = 0; j < 10; j++)
    niz[j] = j * j;
  for (int j = 0; j < 10; j++)
    cout << niz[j] << endl;
  delete [] niz;

  int a = 2, b = 3;
  cout << "a = " << a << endl;
  cout << "b = " << b << endl;
  swap2(a, b);
  cout << "a = " << a << endl;  
  cout << "b = " << b << endl;

  int q = 2;
  cout << "q^2 = " << kvadrat(q) << endl;

  cout << "3^2 = " << kvadrat() << endl;

  cout << "3.3 ^ 2 = " << kvadrat(3.3) << endl;
  
  return 0;
}