Lukujono

#include <bits/stdc++.h>
using namespace std;

int main(){
	int t;
	cin>>t;
	for (int i=0;i<t;i++){
		int x;
		cin>>x;
		int le=1;
		while (x!=1){
			le++;
			if (x>10000000){
				le=-1;
				break;
			}
			if (x%3==0){
				x/=3;
			} else {
				x*=2;
				x++;
			}
		}
		cout<<le<<endl;
	}
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED