Osama is a pharmacy employee responsible for rearranges medicine items on the pharmacy shelves. He needs to rearrange N's set of items in which items have the same first letter with the first item placed on that shelf, starting the first item at the left to right. Help Osama by writing a c++ program to determine how many items will stay on the shelf and how many items will be removed. Hint: only the first letter of the first item from the left is selected to stay on the shelf. Constraints (1