/* Swap() exchanges the values of two variables.

   Receive: First, an (int) variable
            Second, an (int) variable

   Return:  First, containing the value of Second, and
            Second, containing the value of First
--------------------------------------------------------------------*/

void Swap(int& First, int& Second)
{
   int
      Temporary = First;

   First = Second;
   Second = Temporary;
}