?? Ever Tried Solving a Problem by Letting the Code Solve Itself? ??

That’s the beauty of recursion! It’s a programming technique where a function calls itself to break a complex problem into smaller, manageable chunks. Recursion is like peeling layers of an onion—one layer at a time—until you reach the core.

Here’s a practical example: Finding the sum of digits of a number using recursion. Let’s explore how it works! ??

?? How Does It Work?

• SumOfDigits(123)
• = 3 + SumOfDigits(12)
• = 3 + (2 + SumOfDigits(1))
• = 3 + (2 + (1 + SumOfDigits(0)))
• = 3 + (2 + (1 + 0))
• = 3 + (2 + 1)
• = 3 + 3
• = 6

? Why Use Recursion?

• Simplicity: Problems like this become concise and elegant.
• Natural Fit: Perfect for problems involving repetitive or nested structures (like this one).

?? Keep in Mind:

• Always define a clear base case to avoid infinite loops.
• Be aware of stack depth for deep recursion scenarios.

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