What is the time complexity of enqueueing an element in a queue implemented usin
Practice Questions
Q1
What is the time complexity of enqueueing an element in a queue implemented using 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 enqueueing an element in a queue implemented using a linked list?
Step 1: Understand what enqueueing means. Enqueueing is the process of adding an element to the queue.
Step 2: Know that a queue can be implemented using a linked list. A linked list consists of nodes where each node points to the next one.
Step 3: Identify where to add the new element. In a queue, we add elements at the end (tail) of the linked list.
Step 4: Realize that adding an element to the tail of a linked list does not require traversing the entire list. We can directly access the tail if we keep a pointer to it.
Step 5: Conclude that since adding an element at the tail takes a fixed amount of time (regardless of the number of elements in the queue), the time complexity is constant, which is O(1).
