Sarmad on Instagram: "Day 15/100 of Python Challenge 🐍 Functions: Your Code's Best Friend! 🔧 Think of functions as mini-programs within your program- they're reusable blocks of code that perform specific tasks. No more copy-pasting the same code everywhere! 🏗️ Why Functions Matter: - DRY Principle: Don't Repeat Yourself - Organized Code: Break complex problems into smaller pieces - Reusability: Write once, use everywhere - Debugging: Easier to find and fix issues --- 📦 Built-in Functions (Py