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Question

Making the push operation costly, select the code snippet which implements the pop operation.
a)

public void pop()
{
        if(q1.size()>0)
        {
            q2.poll();
        }
        else if(q2.size()>0)
        {
            q1.poll();
        }
}

b)

public void pop()
{
        if(q1.size()>0)
        {
            q1.poll();
        }
        else if(q2.size()>0)
        {
            q2.poll();
        }
}

c)

public void pop()
{
        q1.poll();
 q2.poll();
}

d) None of the mentioned

a.

a

b.

b

c.

c

d.

d

Answer: (b).b

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Q. Making the push operation costly, select the code snippet which implements the pop operation.

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