Linked list implementation of Queue
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Queues can be implemented using linked lists by allocating memory dynamically for each new element and linking them together. Two pointers - Front and Rear - are used to mark the front and rear of the queue. Elements contain a data part and an address part linking to the next element. Insertions occur at the rear and deletions at the front. The linked list start pointer is used as Front, while Rear points to the last element. An empty queue is indicated when Front and Rear are NULL.
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