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高手帮我看一下这里错在哪里啊，说清楚点啊，谢谢啊

Posted by 382784268 at 2008-11-29 14:06:08 on Problem 2249

#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
	
	int n,k;
	while((cin>>n>>k)&&(n!=0)&&(k!=0))
	{
		double s=1,s1=1;
		int i;

		if(k>n/2)k=n-k;
		for(i=1;i<=k;i++)
		{
			s=s*(n-i+1);
			s1=s1*i;
		}
		s=s/s1;
		cout<<setiosflags(ios::fixed)<<setprecision(0)<<s<<endl;
	}
	return 0;
}

Followed by:

Re:试试下面这组数据就知道了. (72) MasterLuo 2008-11-29 14:17:19
- 程序改成这样还说错误的啊，wr (320) 382784268 2008-11-29 16:32:12
  - Re:你写错了. (384) MasterLuo 2008-11-29 17:39:10

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