What is the time complexity of accessing an element in a queue implemented using
Practice Questions
Q1
What is the time complexity of accessing an element in a queue implemented using a linked list?
O(1)
O(n)
O(log n)
O(n^2)
Questions & Step-by-Step Solutions
What is the time complexity of accessing an element in a queue implemented using 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: Realize that to access an element in a queue, you may need to start from the front of the queue and go through each node until you reach the desired element.
Step 4: Count how many nodes you might need to go through. In the worst case, you could have to look at every node in the queue.
Step 5: Conclude that if there are 'n' elements in the queue, you may need to check all 'n' nodes to find the element you want.
Step 6: Therefore, the time complexity for accessing an element in a queue implemented using a linked list is O(n).
