HDU 1056 ( HangOver )

Problem : 1056 ( HangOver )     Judge Status : Accepted
RunId : 5571034    Language : C++    Author : ssun
Code Render Status : Rendered By HDOJ C++ Code Render Version 0.01 Beta

#include<iostream>
#include<cmath>
using namespace std;

int main()
{
    double n,sum;
    int i;
    while(cin>>n)
    {
        sum = 0.0;
        if(fabs(n)<=0.00001) break;
        for(i=2; sum<n; i++)
        {
            sum = sum + 1.0/i;
        }
        cout<<i-2<<" card(s)"<<endl;
    }
    return 0;
}