#include <stl.h>
#include <iostream.h>

int negate_int (int a_)
{
  return -a_;
}

int numbers[6] = { -5, -1, 0, 1, 6, 11 };

int main ()
{
  int result[6];
  transform (numbers, numbers + 6, result, negate_int);
  for (int i = 0; i < 6; i++)
    cout << result[i] << ' ';
  cout << endl;
  return 0;
}