Answer Posted / Raghvendra Kumar
```cppn#include <iostream>nnint factorial(int n) {n if (n == 0 || n == 1) return 1;n return n * factorial(n - 1);n}nnint main() {n int num;n std::cout << "Enter a number: ";n std::cin >> num;n std::cout << "Factorial of " num "":n std::cout << factorial(num) << std::endl;n return 0;n}n```
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