404

#include <stdio.h>

int factorial(int);
int rec_factorial(int);

int main()
{
    int n = 6;
   //printf("fact is %d\n",factorial(n));
   printf("rec  is %d\n",rec_factorial(n));

    return 0;
}
int rec_factorial(int num)
{
    int res;
    if(num>1)
    {
        res = num*(rec_factorial(--num));
        printf("inside res is %d\n",res);

    }
    return res;
}
int factorial(int num)
{
    int i,fact = 1;

    for(i=2;i<=num;i++)
    {
       fact*=i;
    }
    return fact;
}