15个都过了就一个超时······

#include<iostream>
#include<cstdio>
using namespace std;
int main(){
int ans=0;
int n;
cin>>n;
while(n!=1){
	if(n%2!=0){
	n=n*3+1;
	ans++;
	}
	else {
	n=n/2;
	ans++;
	}
}
cout<<ans;
return 0;
}