Program To Find Factorial of a Number

// C program to implement
// the above approach
#include <stdio.h>

// Function to find factorial of
// given number
unsigned int factorial(unsigned int n)
{
	int res = 1, i;
	for (i = 2; i <= n; i++)
		res *= i;
	return res;
}

// Driver code
int main()
{
	int num = 5;
	printf("Factorial of %d is %d",
		num, factorial(num));
	return 0;
}