题目1031：xxx定律

#include <iostream>
#include <stdio.h>
#include <algorithm>
#include <math.h>
#include <string>
#include <string.h>
#include <vector>
#include <queue>
#include <stack>
#include <sstream>
using namespace std;
//1031
int n;
int main(){
    while(scanf("%d",&n)&&n!=0){
        int k=0;
        while(n!=1){
            if(n%2==0) n/=2;
            else    n=(3*n+1)/2;
            k++;
        }
        cout<<k<<endl;
    }
    return 0;
}
/**************************************************************
    Problem: 1031
    User: cust123
    Language: C++
    Result: Accepted
    Time:10 ms
    Memory:1520 kb
****************************************************************/