30分求助

#include <iostream>
using namespace std;
int main()
{
	int n,k;
	int s = 0;
	cin >> n;
	while(n)
	    {
		    s++;
		    if(k==0 && n%3==1)
			    {
			        k = s;	
				}
		    if(n%3==0)
			    {
			        n -= n/3;	
				}
		        else
		            {
		            	n -= n/3+1;
					}
	    }
	cout << s << " " << k;
	return 0;
}