What is a circular queue?

Geeks for geeks queue. A query q is of 2 types. (i) 1 x (a query of this type means pushing 'x' into the queue) (ii) 2 (a query of this type means to pop element from queue. Implement a queue using two stack s1 and s2.

Priority queue is an abstract data type that is similar to a queue, and every element has some priority value associated with it. Your task is to complete the function rev (), that reverses the n elements of the queue. Peek returns the oldest element that is at the.

The given problem can be solved by using a simple queue.the idea is to insert n integers one by one into the queue and then check the frequency of m integers. The task is to reverse the queue. Given a queue q containing n elements.

The task is to reverse the queue. Queries in the queue are of the following type: This contest is based on the data structures and algorithrm concepts which is asked in top product based companies.

Enqueue (2) enqueue (3) dequeue () enqueue (4) dequeue () output: Implement a queue using an array. A computer science portal for geeks.

The priority of the elements in a priority. Here, we will learn operations on queues. The queue interface is present in java.util package and extends the collection interface is used to hold the elements about to be processed in fifo(first in first out) order.