In a stack, what is the time complexity of the pop operation when implemented us
Practice Questions
Q1
In a stack, what is the time complexity of the pop operation when implemented using a dynamic array?
O(1)
O(n)
O(log n)
O(n^2)
Questions & Step-by-Step Solutions
In a stack, what is the time complexity of the pop operation when implemented using a dynamic array?
Step 1: Understand what a stack is. A stack is a data structure that follows the Last In First Out (LIFO) principle, meaning the last element added is the first one to be removed.
Step 2: Know what the pop operation does. The pop operation removes the top element from the stack.
Step 3: Learn about dynamic arrays. A dynamic array can change its size as needed, allowing for efficient storage of elements.
Step 4: Realize that when you pop an element from the stack, you only need to remove the top element from the dynamic array.
Step 5: Understand that removing the top element does not require shifting other elements in the array, which keeps the operation fast.
Step 6: Conclude that since the pop operation only involves removing one element and does not depend on the size of the stack, it takes constant time, which is O(1).
