# include <cstdlib>
# include <iostream>
# include <omp.h>

using namespace std;

int main ( int argc, char *argv[] )
{
  int i, n = 10000000;
  double s, wtime, *x, *y;

  wtime = omp_get_wtime ( );

  s = 123.456;

  x = new double[n];
  y = new double[n];

# pragma omp parallel
  {

# pragma omp for
    for ( i = 0; i < n; i++ )
    {
      x[i] = ( double ) ( ( i + 1 ) % 17 );
      y[i] = ( double ) ( ( i + 1 ) % 31 );
    }

# pragma omp for
    for ( i = 0; i < n; i++ )
    {
      y[i] = y[i] + s * x[i];
    }

  }

  delete [] x;
  delete [] y;

  wtime = omp_get_wtime ( ) - wtime;
  cout << wtime << " seconds.\n";

  return 0;
}