a) Why would we use circular Queue instead of a simple ar Double Ended Queue? Explain b) Consider the Double ended output restricted Queue implemented as a circular array based queue at the right. How will it look like after following operations have been perfomed on it in the given order.

Could you help me the following questions? Sara and her friends said they have discovered a way to get O(1) category performance for both insert and remove in a priority queue. Their description of the data structure and algorithms is as follows: They use an array implementation for the priority queue The index of the array represents the rank of an element – e.g. an element whose rank is 50 will be placed at index 49 Each element is the head node to a linked list – if a new element is inserted into the priority queue with the same rank as another element already in the queue, the new element is added to the linked list at its head Example: If an element “X” with rank 25 exists at index 24, and a new element “Y” also has a rank of 25, the linked list at index 24 is “Y” then “X” When remove is performed, the element at the highest index is removed. If there is more than one node at that index, the node at the head of the linked list there is removed Based on this description of the…

Array lists and linked lists are both examples of list implementations. Give an example of a case in which an array list might be preferable over a linked list. Justify your actions in each scenario.

1. consider an array based queue implementation. suppose we wish to use an extra bit in the queue records to indicate whether a queue is empty. a. Modify the declarationsand operations for a circular queue to accomodate this feature. b. Would you see the change to be worthwide.