In this section, we present the ArrayQueue data structure, which implements a FIFO (first-in-first-out) queue; elements are removed (using the \(\mathtt{remove()}\) operation) from the queue in the sa...In this section, we present the ArrayQueue data structure, which implements a FIFO (first-in-first-out) queue; elements are removed (using the \(\mathtt{remove()}\) operation) from the queue in the same order they are added (using the \(\mathtt{add(x)}\) operation). We could maintain one index \(\mathtt{j}\) that keeps track of the next element to remove and an integer \(\mathtt{n}\) that counts the number of elements in the queue.
