1. Problem 📃

2. Constraint 🔗

3. Solution 🔑

문제 설명의 네모 박스처럼 구현.

4. Code 💻

class Solution {
	public long solution(long num) {
        long answer = 0;
        while(num != 1) {
        	if(num % 2 == 0) {
        		num /= 2;
        		answer++;
        	}
        	else {
        		num = num * 3 + 1;
        		answer++;
        	}
        	if(answer > 500) {
        		answer = -1;
        		return answer;
        	}
        }
        return answer;
    }
}