What is the concept of recursion in programming?

Umesh Sanjyal . 3 weeks ago

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A programming concept where a function calls itself to solve smaller instances of the same problem or called itself inorder to solve the problem is called recursion .

• Some Key Points of Recursion are mention below : Recursion breaks a problem into smaller sub-problems. It has two main parts: Base Case :The condition under which the function stops calling itself. Recursive Case : The part where the function calls itself with a smaller input.

int factorial(int n) { if (n == 0) return 1; // Base Case else return n * factorial(n - 1); // Recursive Call }

When to Use Recursion: Solving problems that can be divided into similar smaller problems (like factorial, Fibonacci, tree traversals, etc.) When iterative solutions become too complex or lengthy