> #include <stdio.h>
> int main()
> {
> 	int n,i,ways;
> 	scanf("%d",&n);
> 	ways = 0;
> 	if(n%2 != 0)ways++;
> 	for(i = 1;i < n;i = i + 2)
> 	{
> 		if(n%i == 0)
> 			ways++;
> 	}
> 	printf("%d\n",ways);
> 	return 0;
> }
太nb了吧。。。