stl and namespaces

In the past when using stl classes in my program I've just done a using namespace::std; to get it correctly. I've been doing some reading, and I guess this isn't a good practice.

The following is an example of where I cannot figure out how to get stl to compile without a using namespace::std:

Code:

#include <list>
using std::list;
using std::iterator;

int main()
{
   list< list<char>* > lines_list;
   list< list<char>* >::iterator lines_itr = lines_list.begin();

   return 0;
}

The above code works if I throw in a using namespace::std;.

It's not a major problem, but I would like to understand the proper way.

Chad

its "using namespace std;" and that is the correct way...