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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?

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Solution 1

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:

  1. Access the queue's front pointer.
  2. Check if the front pointer is null.
  3. 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.

This problem has been solved

Solution 2

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:

  1. Access the queue's front pointer.
  2. Check if the front pointer is null.
  3. 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.

This problem has been solved

Solution 3

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:

  1. Access the front pointer of the queue.
  2. Check if the front pointer is pointing to null.
  3. If the front pointer is null, then the queue is empty.
  4. If the front pointer is not null, then the queue is not empty.

This is because in a queue implemented using 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.

This problem has been solved

Solution 4

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:

  1. Access the front pointer of the queue.
  2. Check if the front pointer is pointing to null.
  3. If the front pointer is null, then the queue is empty.
  4. If the front pointer is not null, then the queue is not empty.

This is because in a queue implemented using 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.

This problem has been solved

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