What is the time complexity of deleting an element from a queue implemented with
Practice Questions
Q1
What is the time complexity of deleting an element from a queue implemented with a linked list?
O(1)
O(n)
O(log n)
O(n log n)
Questions & Step-by-Step Solutions
What is the time complexity of deleting an element from a queue implemented with a linked list?
Step 1: Understand what a queue is. A queue is a data structure that follows the First In First Out (FIFO) principle.
Step 2: Know that a queue can be implemented using a linked list. In a linked list, each element (node) points to the next one.
Step 3: Identify where elements are added and removed in a queue. Elements are added at the back and removed from the front.
Step 4: Focus on the deletion operation. To delete an element from the front of the queue, you simply remove the first node of the linked list.
Step 5: Realize that removing the first node of a linked list involves changing a few pointers, which takes a fixed amount of time, regardless of the number of elements in the list.
Step 6: Conclude that since the deletion operation does not depend on the size of the queue, it is a constant time operation.
Step 7: Therefore, the time complexity of deleting an element from a queue implemented with a linked list is O(1).
