# made easy demo test #Q 60

Question

Answer 1

Elements of Queue are as follows 

5

4

3

2

1

At x=1 we dequeue 1 then dequeue 2 and enququeu it 

2

5

4

3

At x=2 we dequeue 3 then dequeue 4 and enqueue it 

4

2

5

At x= 3 we dequeue 5 then dequeue 2 then enqueue 2

2

4

At x=4 we dequeue 4 then dequeeue 4 then enqueue 2

2

Our process ends here 

Number of element remains is 1 and value of that element is 2

Answer 2

First 5 numbers will be enqueued.

In next for loop

for each iteration ,2 dequeues and 1 enqueue will be done. each iteration one element is dequeued.

So after 4 iterations 1 element will be present