hdu 1056 HangOver

http://acm.hdu.edu.cn/showproblem.php?pid=1056  简单 模拟

#include<iostream>
#include<cmath>
#include<cstring>
using namespace std;
int main()
{
    double len;
    while(cin>>len && len)
    {
       double sum=1.0/2.0;
       if(sum>=len) {cout<<"1 card(s)"<<endl;continue;}
       int i;
       for(i=2;;i++)
       {
          sum+=1.0/(i+1);    
          if(sum>=len) break;            
       }
       cout<<i<<" card(s)"<<endl;
    }
    return 0;
}

 

 1 #include<iostream>
 2 #include<cmath>
 3 #include<cstring>
 4 using namespace std;
 5 int main()
 6 {
 7     double len;
 8     while(cin>>len && len)
 9     {
10        double sum=1.0/2.0;
11        if(sum>=len) {cout<<"1 card(s)"<<endl;continue;}
12        int i;
13        for(i=2;;i++)
14        {
15           sum+=1.0/(i+1);    
16           if(sum>=len) break;            
17        }
18        cout<<i<<" card(s)"<<endl;
19     }
20     return 0;
21 }