What is the time complexity of deleting the last element from a dynamic array?
Practice Questions
Q1
What is the time complexity of deleting the last element from a dynamic array?
O(1)
O(n)
O(log n)
O(n^2)
Questions & Step-by-Step Solutions
What is the time complexity of deleting the last element from a dynamic array?
Step 1: Understand what a dynamic array is. A dynamic array is a data structure that can grow or shrink in size as needed.
Step 2: Identify the operation we are focusing on, which is deleting the last element of the dynamic array.
Step 3: Recognize that when we delete the last element, we simply remove it without needing to shift any other elements.
Step 4: Realize that this removal does not depend on the size of the array; it takes the same amount of time regardless of how many elements are in the array.
Step 5: Conclude that since the operation takes a constant amount of time, we say the time complexity is O(1).
