프로그래머스 - 각도기

https://school.programmers.co.kr/learn/courses/30/lessons/120829

class Solution {
    public int solution(int angle) {
        if (0 < angle && angle < 90)
            return 1;
        else if (angle == 90)
            return 2;
        else if (90 < angle && angle < 180)
            return 3;
        else 
            return 4;
    }
}