ADT - Stack

Implement a Stack class in Python with the following operations:

• push(item): Adds an item to the top of the stack.
• pop(): Removes and returns the item from the top of the stack.
• top(): Returns the item at the top of the stack without removing it. (it is also referred as peek()
• is_empty(): Returns True if the stack is empty, False otherwise.
• size(): Returns the number of items in the stack.

Testcases

Input 1

18
24
44

Output 1

Item 18 pushed into the Stack
Item 24 pushed into the Stack
Item 44 pushed into the Stack
Top Element is:  44
Stack Size is:  3

Input 2

18
24
44

Output 2

Item 18 pushed into the Stack
Item 24 pushed into the Stack
Item 44 pushed into the Stack
Top Element is:  44
Popped Element is:  44
Top Element is:  24

Input 3

72

Output 3

Is Stack Empty:  True
Item 72 pushed into the Stack
Is Stack Empty:  False