Show what is written by the following segments of code, given that item1, item2, and item3 are int variables.

a.

QueType queue;

item1 = 1;

item2 = 0;

item3 = 4;

queue.Enqueue(item2);

queue.Enqueue(item1);

queue.Enqueue(item1 + item3);

queue.Dequeue(item2);

queue.Enqueue(item3*item3);

queue.Enqueue(item2);

queue.Enqueue(3);

queue.Dequeue(item1);

cout << item1 << endl << item2 << endl << item3

<< endl;

while (!queue.IsEmpty())

{

queue.Dequeue(item1);

cout << item1 << endl;

}

b.

QueType queue;

item1 = 4;

item3 = 0;

item2 = item1 + 1;

queue.Enqueue(item2);

queue.Enqueue(item2 + 1);

queue.Enqueue(item1);

queue.Dequeue(item2);

item1 = item2 + 1;

queue.Enqueue(item1);

queue.Enqueue(item3);

while (!queue.IsEmpty())

{

queue.Dequeue(item3);

cout << item3 << endl;

}

cout << item1 << endl << item2 << endl << item3 << endl;