> #include<stdio.h>
> long f(long n,long m)
> {
> 	if(m==1)return n;
> 	if(m==0)return 1;
> 	else
> 	{
> 		return (f(n-1,m-1)*n)/m;
> 	}
> }
> int main()
> {
> 	long n,m;
> 	while(scanf("%ld%ld",&n,&m))
> 	{
> 		if(n==0&&m==0)
> 		{
> 			break;
> 		}
> 		else
> 		{
> 			if(m>n/2)m=n-m;
> 			printf("%ld\n",f(n,m));
> 		}
> 	}
> 	return 0;
> }

• Re:大家快帮我看看 吧 (6) sun_huangjian 2007-09-04 20:08:06