Web Reference: Circular queue avoids the wastage of space in a regular queue implementation using arrays. In this tutorial, you will understand circular queue data structure and it's implementations in Python, Java, C, and C++. Oct 30, 2025 · A circular queue is a linear data structure that overcomes the limitations of a simple queue. In a normal array implementation, dequeue () can be O (n) or we may waste space. Design your implementation of the circular queue. The 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".
YouTube Excerpt: In this video I discuss how to think about and implement a
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