The following code segment is a count-controlled loop going from 1 to 5. At each iteration, the loop counter is either printed or put on a queue depending on the result of Boolean function RanFun(). (The behavior of RanFun() is immaterial. At the end of the loop, the items on the queue are dequeued and printed. Because of the logical properties of a queue, this code segment cannot print certain sequences of the values of the loop counter. Is the following output possible using a queue: 1 2 3 4 5?

True.

Explanation:

For all the count values, if Ranfun() returns true then all the values of count would be printed. Then the sequence of count values printed would be 1 2 3 4 5. Also for all the values of count if Ranfun() returns false then all the values would be enqueued. When we try to dequeue elements from queue we would get them in the same order of their entry into the queue. Thus, the sequence would be 1 2 3 4 5. Hence, we can say that this output sequence is possible. TRUE.

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