JAVA] 프로그래머스알고리즘 - 2016년

class Solution {
    private static final String[] week = {"SUN","MON","TUE","WED","THU","FRI","SAT"};
    public String solution(int a, int b) {
        int imsi = 21*20/4 + ((a<=2)?5*16:5*15)/4 + 13*(a+1)/5 + b+((a<2)?0:1);
        String answer = week[imsi % 7];
        return answer;
    }
}

 

 

https://programmers.co.kr/learn/courses/30/lessons/12901