In linked list implementation of a queue, the important condition for a queue to be empty is?
Question
In linked list implementation of a queue, the important condition for a queue to be empty is?
Solution
In the linked list implementation of a queue, the important condition for a queue to be empty is when the front pointer of the queue is null.
Here are the steps to check if a queue is empty:
- Access the queue's front pointer.
- Check if the front pointer is null.
- If the front pointer is null, then the queue is empty. If it is not null, then the queue is not empty.
This is because in a queue implemented with a linked list, the front pointer points to the first element in the queue. If there are no elements in the queue, the front pointer will be null.
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