> #include <iostream.h>
> int main()
> {
> 	double a,j,sum;
> 	cin>>a;
> 	while(a>0.01)
> 	{
> 		j=2;
> 		sum=0;
> 	    while(sum<a)
> 		{
> 			sum+=1/j;
> 			j++;
> 		}
> 	    cout<<j-2<<"card<s>"<<endl;
> 		cin>>a;
>         if(a<0.01)break;
> 	}
> 	return 0;
> }
a=0.01怎么办