Python Snippets for Learning Stacks and Queues Stacks # Creating a Stackstack = []# Pushing elementsstack.append(3); stack.append(7); stack.append(5)# Popping elementsstack.pop()# Checking if stack is emptyis_empty = not stack# Getting the top element without poppingtop_element = stack[-1] if stack else None# Size of the stacksize = len(stack)# Clearing the stackstack.clear() Queues from collections import deque# Creating …
Python Snippets for Learning Stacks and Queues Stack # Creating a Stack stack = [] # Pushing elements onto the Stack stack.append(3) stack.append(7) stack.append(5) print(“Stack after Push:”, stack) # Output: [3, 7, 5] # Popping elements from the Stack stack.pop() print(“Stack after Pop:”, stack) # Output: [3, 7] Queue from collections import deque # Creating …
Understanding Stacks and Queues Stack (Last In, First Out) A stack is like a stack of plates. You place plates on top, and when you need one, you take the one from the top. Start: [] Push 3, 7, 5: [3, 7, 5] Pop: [3, 7] Push 9: [3, 7, 9] Pop: [3, 7] Queue …
