What are the differences between an ordered list, an unordered list, and an indexed list?
What will be an ideal response?
An ordered list has elements that are arranged according to some characteristic of each element. When
elements are added to the list, they are added to maintain the relationship of this characteristic among adjacent elements. An
unordered list is a list in which the elements have no such inherent characteristic that can be used to order them. The elements
are still in the list in some order, but the order is determined by the user of the list. An indexed list is also unordered, in that the
elements are added to the list in an order determined by the user of the list and not by a relation between characteristics of the
elements. However, an indexed list also has an index associated with each element. As an element is added to the list, it is given
an index appropriate for its position in the list. All of the indexes of the elements after the added element are adjusted so that
they remain contiguous and in order.
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