Otherwise, the element at front is deleted and front points to next element. If there is only one element in the queue that is deleted and front and rear are set to NULL. In the function Delete(), if there are no elements in queue then it is underflow condition. Temp=(struct node *)malloc(sizeof(struct node)) Rear = (struct node *)malloc(sizeof(struct node)) do I build an Auto Attendant that routes to my Call Queue or do I build a Call Queue that routes to my Auto Attendant, then route the call back to the Call Queue my customer wants the following: call routes to agents from 8-7pm, if no one answers call after 5 rings, call routes to another Call Queue. In other words, the least recently added element is removed first in a queue.Ī program that implements the queue using linked list is given as follows − Example #include Queue implements the FIFO mechanism i.e the element that is inserted first is also deleted first. A queue is an abstract data structure that contains a collection of elements.
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