给你个更短的

#include <iostream>
#include <stdio.h>
using namespace std;
int main()
{
    double n;
    while (~scanf("%lf",&n))
    {
          while (n>18.0) n/=18.0;
          if (n<=9) printf("Stan wins.\n");
          else printf("Ollie wins.\n");
    }
}