Thread: Recursion Problem

Hey Guys,

Can any body help me out with the factorial problem below. I learnt scheme last semester and I am trying to use the same approach to find the factorial using recursion but it doesn't seem to work !

Code:

int main() {

               int n;
               printf("Enter a number for factorial :");
               scanf("%d", &n);
               factorial(n);

}


int factorial(int num){

double ans =0;

        int print_factorial(int num) {
	 if (num==0)
	 return 1;
         else 
         ans = (num*print_factorial(num-1));
 
} 

        printf("%d",ans);
}

Originally Posted by kuma0177

Code:

int main() {

               int n;
               printf("Enter a number for factorial :");
               scanf("%d", &n);
               factorial(n);

}


int factorial(int num){

double ans =0;

        int print_factorial(int num) {
	 if (num==0)
	 return 1;
         else 
         ans = (num*print_factorial(num-1));
 
} 

        printf("%d",ans);
}

ok dude...hers the prob..

try not nesting functions since its no use at all


int factorial(int num){

double ans =0;

if (num==0)
return 1;
else
ans = (num*factorial(num-1));

}

printf("%d",ans);
}
[/CODE]

and the in the printf..."%d" is for decimals...try "%f" for doubles.