循环队列和优先队列的区别

循环队列： Circular Queue 是一种线性数据结构，其中的操作基于 FIFO(先进先出)原则进行，最后一个位置连接回第一个位置以形成一个循环。它也被称为“环形缓冲区” 。

优先队列： 优先级队列是一种特殊类型的队列，其中每个元素都与一个优先级相关联，并根据其优先级提供服务。

循环队列和优先级队列的区别如下：

Circular queue	Priority queue
Circular queue is not linear but circular.	Priority is a special type of data structure in which items can be inserted or deleted based on the priority.
It is also called as a ring buffer.	It is also called simple queue.
Items can be inserted or deleted from a queue in O(1) time.	It can perform three operations like insert delete and display.
Both the front and the rear pointers wrap around to the beginning of the array.	It does not allow elements in sorted array.
It overcomes the problem of linear queue.	It allows duplicate elements.
It requires less memory.	It requires more memory.
More efficient	Less efficient.

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