c++ factorial
#include <iostream>
using namespace std;
// Function to calculate factorial
int factorial(int n) {
if (n == 0 || n == 1) {
return 1;
} else {
return n * factorial(n - 1);
}
}
// Main function
int main() {
// Input: the number for which factorial is to be calculated
int num;
cout << "Enter a number: ";
cin >> num;
// Output: Calculate and display the factorial
cout << "Factorial of " << num << " = " << factorial(num);
return 0;
}