Queue · Class 12 · CBSE · Science Computer Science
What will be printed by the following Python code? q = []; q.append(10); q.append(20); q.pop(0); q.append(30); print(q[0], q.pop(0))
Practice question from Queue (Class 12 · CBSE · Science Computer Science), with the correct answer and a step-by-step solution.
hard · MCQ · Q-525CA3
What will be printed by the following Python code? q = []; q.append(10); q.append(20); q.pop(0); q.append(30); print(q[0], q.pop(0))
- A.10 10
- B.20 20Correct answer
- C.20 30
- D.30 30
Solution
After removing 10, the queue contains [20]. Appending 30 gives [20, 30]; therefore, q[0] is 20 and removing the front element also returns 20.
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