Answer the following statements true (T) or false (F)

1) Insertions and deletions in the middle of a deque are optimized to minimize the number
of elements copied, so it’s more efficient than a vector but less efficient than a list for
this kind of modification.
2) Container set does not allow duplicates.
3) Class stack (from header ) enables insertions into and deletions from the underlying
data structure at one end (commonly referred to as a last-in, first-out data
structure).
4) Function empty is available in all containers except the deque.
5) Standard Library algorithms can operate on C-like pointer-based arrays.


1. True.
2. True.
3. True.
4. False. Function empty is available in all containers
5. True.

Computer Science & Information Technology

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