Circular queue geeksforgeeks

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Array representation of a queue containing 5 elements along with the respective values of front and rear, is shown in the following figure. The above figure shows the queue of characters forming the English word "HELLO". Since, No deletion is performed in the queue till now, therefore the value of front remains -1 .

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See full list on 3. C Program For Simple Or Linear Queue 4. C Program For Circular Queue 5. C Program For Priority Queue 6. C Program For Dequeue 7. C Program For Single Linked List 8. C Program For Doubly Linked List 9. C Program For Circular Linked List 10. C Program For Binary Search Tree 11. C Program For Binary Tree 12. C Program For AVL Tree 13. C Program ...

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Priority Queue Implementation using Array: Queue is also an abstract data type or a linear data structure, just like stack data structure, in which the first element is inserted from one end called the REAR(also called tail), and the removal of exist Circular queue: Circular Queue is a linear data structure in which the operations are performed based on FIFO (First In First Out) principle and the last position is connected back to the first position to make a circle. It is also called 'Ring Buffer'.You can use all the functionality of a Queue from the java.util.LinkedList generic class. Use the addLast method to enqueue an element, and the removeFirst method to dequeue an element. Since LinkedList is doubly linked, you should see all the performance benefits of a Queue.

the above code performs the same function that we need to do for a simple queue using link list, because the purpose of circular queue is for space utilization, and here we are doing the same, but the main thing is that the circular queue's typical data structure can never be maintained without a circular link list. What is Circular Queue? The queue is considered as a circular queue when the positions 0 and MAX-1 are adjacent. Any position before front is also after rear. A circular queue looks like. Note: Note that the container of items is an array. Array is stored in main memory. Main memory is linear. So this circularity is only logical.