//problem 30(factorial of a given number)

 

problem 30(factorial of a given number)

#include<stdio.h>

int fact(int num)

{

    if(num<=1)return 1;

    return num*fact(num-1);

}

int main()

{

    int r;

    r=fact(2);

    printf("factorial : %d\n",r);

    return 0;

}