프로그래머스(JAVA) : 콜라츠 추측

 

class Solution {
    public int solution(int num) {
        int answer = 0;
        long number = num;
        boolean run = true;
        long x = num;
    
        if( x == 0) {
            answer = 0;
        } else {
        
        while(x > 1) {
            x = number;
            if(x%2 == 0 && answer <500) {
                answer ++;
                number =x/2;
                //System.out.println("1:" + number);
                    if(x==1) {
                        answer --;
                        break;
                    }
            } else if(answer < 500){
                answer ++;
                number = x*3 + 1;
                //System.out.println("2:" + number);
                    if(x==1) {
                        answer --;
                        break;
                    }
            } else {
                answer --;
                answer= -1;
                break;
            }
        }
        }
        return answer;
    }
}