my solution is below,the system says WRONG ANSWER
please help me

#include "stdio.h"
unsigned long count(int n,int s)
{
    int i;
    unsigned long sum=0;
    if (n==1)
        if (s<=9)
            return 1;
        else
            return 0;
    for(i=0;i<=((s>9)?9:s);i++)
        sum+=count(n-1,s-i);

    return sum;
}

main()
{
    int n;
    int s;
    unsigned long result;
    unsigned long tmp;
    scanf("%d",&n);
    scanf("%d",&s);
    if ((s%2)==1)
        result=0;
    else
    {    tmp=count(n,s/2);
        result=tmp*tmp;
    }
    printf("%lu\n",result);
    return 0;
}
please mail to me
galois@kali.com.cn

> my solution is below,the system says WRONG ANSWER
> please help me
>
> #include "stdio.h"
> unsigned long count(int n,int s)
> {
>     int i;
>     unsigned long sum=0;
>     if (n==1)
>         if (s<=9)
>             return 1;
>         else
>             return 0;
>     for(i=0;i<=((s>9)?9:s);i++)
>         sum+=count(n-1,s-i);
>
>     return sum;
> }
>
> main()
> {
>     int n;
>     int s;
>     unsigned long result;
>     unsigned long tmp;
>     scanf("%d",&n);
>     scanf("%d",&s);
>     if ((s%2)==1)
>         result=0;
>     else
>     {    tmp=count(n,s/2);
>         result=tmp*tmp;
>     }
>     printf("%lu\n",result);
>     return 0;
> }
> please mail to me
> galois@kali.com.cn
>
>

If you don't have anything to say, why wasting space
in the webboard? It's overcrowded anyway. I always have
to look over the subjects again and again and again.
I would be very happy if timus would install another
Webboard, just like that of acm.uva.es (hello admins?)
or something better...

Stefan Pochmann

Can you mail me your pascal code?

An obvious error:
The result in the bigest test exceeds the c++'s long type.
You should implement and use long numbers in the solution.


> my solution is below,the system says WRONG ANSWER
> please help me
>
> #include "stdio.h"
> unsigned long count(int n,int s)
> {
>     int i;
>     unsigned long sum=0;
>     if (n==1)
>         if (s<=9)
>             return 1;
>         else
>             return 0;
>     for(i=0;i<=((s>9)?9:s);i++)
>         sum+=count(n-1,s-i);
>
>     return sum;
> }
>
> main()
> {
>     int n;
>     int s;
>     unsigned long result;
>     unsigned long tmp;
>     scanf("%d",&n);
>     scanf("%d",&s);
>     if ((s%2)==1)
>         result=0;
>     else
>     {    tmp=count(n,s/2);
>         result=tmp*tmp;
>     }
>     printf("%lu\n",result);
>     return 0;
> }
> please mail to me
> galois@kali.com.cn
>
>