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

int main ()
{
  vector <int> v1 (6);
  iota (v1.begin (), v1.end (), 0);
  iter_swap (v1.begin (), v1.begin () + 3);
  ostream_iterator <int> iter (cout, " ");
  copy (v1.begin (), v1.end (), iter);
  cout << endl;
  return 0;
}
ÿ