I Built Stack Data Structure in Python (3 mins guide)

🧠 Learn Stacks in Python in 3-Minutes!

A stack is a simple data structure that works like a pile of plates: LIFO (Last In, First Out). Let’s build one from scratch in Python using a class! 🎉

# 📦 1. Create a Stack Class
class Stack:
def __init__(self):

# 📥 Push: Add an item to the stack
def push(self, item):

# 📤 Pop: Remove and return the top item
def pop(self):
return "Stack is empty!"

# 👀 Peek: Look at the top item without removing it
def peek(self):
return "Stack is empty!"

# ❓ Is Empty: Check if the stack is empty
def is_empty(self):

# 📏 Size: Check the size of the stack
def size(self):

# 🛠️ 2. Use the Stack
stack = Stack() # Create a stack

💡 Why Use a Stack?

- Undo/redo operations 📝
- Backtracking algorithms 🧩
- Expression evaluation 📜

🔑 Key Takeaway: Stacks are super easy to implement in Python and incredibly useful in programming!

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if sub==Done:
print("You are Amazing!!!")
else:
print("Sub to become Amazing!!!")