[문제링크 - 프로그래머스 - 각도기] https://school.programmers.co.kr/learn/courses/30/lessons/120829
class Solution {
public int solution(int angle) {
if(angle < 90) return 1;
else if(angle == 90) return 2;
else if(angle < 180) return 3;
else return 4;
}
}