#include <iostream>
#include <cstdio>

/*
  Ovo je C-ovski komentar
 */

// ovo je C++ komentar

using namespace std;

void swap(int a, int b) {
  int tmp = a;
  a = b;
  b = tmp;
}

void swap1(int *a, int *b) {
  int tmp = *a;
  *a = *b;
  *b = tmp;
}

void swap2(int &a, int &b) {
  int tmp = a;
  a = b;
  b = tmp;
}

inline int kvadrat(int x) {
  return x * x;
}

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

int main() {
  int x(1), y = 3;
  const int d = 10;
  bool t = true;
  int i;
  
  cout << "Hello, world" << endl;

  cout << "Unesi x: ";
  cin >> x;
  cout << "Unesi y: ";
  cin >> y;
  
  cout << "t = " << t << endl;
  
  cout << "x = " << x << endl;
  cout << "y = " << y << endl;

  swap(x, y);

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

  swap1(&x, &y);

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

  swap2(x, y);

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

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

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

  for (i = 0; i < 10; i++)
    cout << i << endl;

  cout << kvadrat(25) << endl;
  cout << kvadrat(25.5) << endl;
  printf("%g\n", kvadrat(25.5));

  int *p;
  p = new int[10];
  for (i = 0; i < 10; i++) {
    p[i] = i * i;
    cout << p[i] << endl;
  }
  delete [] p;
  
  return 0;
}