Queue adt according to 9618 a level computer science python

# queue adt (abstract data type) tutorial

a queue is a data structure that follows the first-in-first-out (fifo) principle. elements are added to the back of the queue and removed from the front of the queue. queues are commonly used in scenarios where the order of processing elements is important.

## operations of a queue adt:

1. **enqueue(item)**: adds an item to the back of the queue.
2. **dequeue()**: removes and returns the item at the front of the queue.
3. **is_empty()**: returns true if the queue is empty, false otherwise.
4. **size()**: returns the number of items in the queue.

## implementation of queue adt in python:

## using the queue adt:

this is a basic implementation of a queue adt in python. you can further enhance this implementation by adding additional functionalities or modifying it to suit your specific requirements.

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