poj1003

简单题

#include <iostream>
using namespace std;

int main()
{
    double    now, c;
    int        i;

    //freopen("t.txt", "r", stdin);
    while (cin >> c && c != 0)
    {
        now = 0;
        i = 2;
        while (now < c)
        {
            now += 1.0 / i;
            i++;
        }
        printf("%d card(s)\n", i - 2);
    }
    return 0;
}