In stack deletion operation is referred as _____

1.	In stack deletion operation is referred as _____
A.	push
B.	pop
C.	peek
D.	none of these
Answer» C. peek

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Suppose you are given an implementation of a queue of integers. The operations that can be performed on the queue are:i. isEmpty (Q) — returns true if the queue is empty, false otherwise.ii. delete (Q) — deletes the element at the front of the queue and returns its value.iii. insert (Q, i) — inserts the integer i at the rear of the queue.Consider the following function:void f (queue Q) {int i ;if (!isEmpty(Q)) { i = delete(Q); f(Q); insert(Q, i); }}What operation is performed by the above function f ?
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In stack deletion operation is referred as _____

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