#include <iostream>
using namespace std;
int main ()
{
    float s,m=0;  int k;
	cin>>s;
	if(s==0) return 0;
	for(k=2;m<s;k++)
		m+=1.0/k;
	cout<<(k-2)<<" card(s)"<<endl;

}

• Re:1003 为什么不行啊? (214) choidi 2010-01-25 21:55:13