tar mart linked list and Big0

You have been asked to simulate the new Tarmart Priority Checkout SystemTM. This new priority system uses passive RFID tags placed into all Tarmart merchandise, and a large RFID scanner placed at the entrance to the checkout lines, to determine how many items each customer has when they checkout.1 A survey of Tarmart customers has shown that their customer base is mostly over the age of 55, and that they emphatically do not like to bag their own items. This means that they can’t just walk out of the store (like at the new Amazway stores), but have to have each item individually bagged by a checkout clerk which is very slow. The new Tarmart Priority Checkout SystemTM will display a giant red Tarmart ArrowTM overtop the line with the fewest items to be checked out giving their customers a clear indicator of which line they should join.