#include<iostream>
#include <cmath>
using namespace std;
int main()
{
    float a;
    while(cin>>a)
   {
           double sum=0;
           for(long i=2;i<=1000000;i++)
           {
                 sum=sum+(double)1/i;
                 if(a<=sum)
                 {
                        cout<<i-1<<" card(s)"<<endl;
                        break;
                 }
           }
              
   }
   system("pause");
   return 0;
}

• Re:在下草鸟一个啊 麻烦哪位前辈指点一下啊！ 先谢谢了 (299) kachedingzi 2010-03-12 10:33:19