Circular queue: Learn what is a

Learn what is a circular queue, how it works, and how to implement it using an array. See the code examples in C, C++, Java, and Python for enqueue and dequeue operations. 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. In C++, Queues are a fundamental data structure in computer science which works on the principle of FIFO (First In, First Out). They can be implemented using both array and linked list. A circular queue is a type of queue in which the last element is connected to the first element, forming a circular structure. In this article, we'll learn about circular queue, how to implement it in C++, and analyze its complexity. What is Circular Queue in C++? In a circular queue is a queue where the last ... A Circular Queue is a queue in which we can insert an element at the start of the Array even if our rare is reached at the last index and if we have space at the start of the array. This reduces the problem of inefficient use of array space. Once the array is filled till the last and if we have space at the beginning of an array, we fill the element at the front we perform insertion in a circular manner that's why it is known as a circular queue. Approach to Implementing a Circular Queue If ...