What is the difference between a stack and an array?
A stack is a linear data structure that follows the Last In First Out (LIFO) principle, while an array is a collection of elements identified by index.
Can you give me an example of how a stack works?
Sure! Imagine a stack of plates. You can only add or remove the top plate. If you add a plate, it goes on top, and if you remove one, you take the top plate off.
How do I implement a stack in Python?
You can use a list in Python to implement a stack. Use append()
to add an item and pop()
to remove the top item.
What are the use cases for stacks?
Stacks are used in function calls, undo mechanisms in applications, and parsing expressions.
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