As we can see in the above image, the rear is at the last position of the Queue and front is pointing somewhere rather than the 0thposition. In the above array, there are only two elements and other three positions are empty. The rear is at the last position of the Queue; if we t...
Front and rear variables point to the position from where insertions and deletions are performed in a queue. Initially, the value of front and queue is -1 which represents an empty queue. Array representation of a queue containing 5 elements along with the respective values of front and rear,...
A queue is a data structure in which whatever comes first will go out first, and it follows the FIFO (First-In-First-Out) policy. Insertion in the queue is done from one end known as therear endor thetail,whereas the deletion is done from another end known as thefront endor theheadof...