what's wrong with my code? i tried a few test cases and the result is good.
#include<stdio.h>
int main()
{
    int num,n=0;
    int res=1;
    char a;
    scanf("%d ",&num);
    while(scanf("%c",&a)==1)
        n++;
    for(int i=num%n;i<=num;i+=n)
    {
        if(i==0)
            i=n;
        res=res*i;
    }
    printf("%d",res);
}

Edited by author 23.05.2013 23:39

try adding '\n' to the output