What is Circular Queue?



Suraj Said

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A circular queue is a type of queue data structure in which the last element points back to the first element, forming a circular buffer.
In a circular queue, when the end of the queue is reached, new elements are added at the beginning of the queue, reusing the memory space of elements that have been removed. This makes a circular queue more memory-efficient compared to a traditional queue, where new elements are added to the end of the queue and the size of the queue increases dynamically as elements are added.
Circular queues are used in various real-time systems, such as scheduling and resource allocation, where the processing time of tasks is constant and limited.





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