🐣 문제

링크 : https://school.programmers.co.kr/learn/courses/30/lessons/12943

🐥 코드

#include <string>
#include <vector>
#include <iostream>
using namespace std;

int solution(int n) {
    int answer = 0;
    long long num = n;
    
    if(num == 1) {
        answer = 0;
        return answer;
    }
    
    while(num != 1){  
        if(num % 2 == 0) num = num / 2;
        else num = (num * 3) + 1;
        answer ++;
     
        if(answer == 500) {
            answer = -1;
            break;
        }
    }
    
    return answer;
}