What is the time complexity of enqueuing an element in a queue implemented using
Practice Questions
Q1
What is the time complexity of enqueuing an element in a queue implemented using an array?
O(1)
O(n)
O(log n)
O(n^2)
Questions & Step-by-Step Solutions
What is the time complexity of enqueuing an element in a queue implemented using an array?
Step 1: Understand what 'enqueueing' means. It means adding an element to the end of the queue.
Step 2: Know that a queue can be implemented using an array, which is a fixed-size list of elements.
Step 3: When you add an element to the queue, you place it at the next available position in the array.
Step 4: If there is space in the array, this operation takes a constant amount of time, which we call O(1).
Step 5: However, if the array is full and needs to be resized (made larger), this operation will take more time because we have to create a new array and copy the existing elements to it.
Step 6: Resizing the array is not a common operation, so we usually consider the average time complexity for enqueueing to be O(1).
