Question

Given an initially empty queue, what elements will be in the queue, from front to back, after the following operations are performed?

a. add(l)
b. add(m)remove()
c. add(n)
d. add(o)remove()
e. add(p)m, n, o, pp, o, np, o, n, mn, o, p

Answer 1

After the given sequence of queue operations, the final order of elements in the queue from front to back is 'n', 'o', and 'p'.

Step-by-step explanation:

After performing the specified queue operations, the elements that will be in the queue from front to back are as follows:

1. Add(l): Queue contains [l].
2. Add(m): Queue contains [l, m].
3. Remove(): This removes 'l' from the queue, leaving [m].
4. Add(n): Queue contains [m, n].
5. Add(o): Queue contains [m, n, o].
6. Remove(): This removes 'm' from the queue, leaving [n, o].
7. Add(p): Queue contains [n, o, p].

Therefore, the elements in the queue from front to back will be n, o, and p.