What is the time complexity of stacks and queues?

What is the time complexity of stacks and queues?

The time complexity for both stacks and queues is O(1) for operations like push and pop for stacks, and enqueue and dequeue for queues.

Can you explain why these operations are O(1)?

Sure! In stacks, push and pop operations involve adding or removing an element from the top, which takes constant time. Similarly, in queues, enqueue and dequeue operations involve adding or removing elements from the front or back, also in constant time.

Are there any scenarios where the complexity might change?

In general, the complexity remains O(1) for these operations. However, if you implement stacks or queues using linked lists, the complexity could vary based on the implementation details.

What about space complexity?

The space complexity for both stacks and queues is O(n), where n is the number of elements stored, as they need to allocate space for each element.