16. 2016년

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

 

파이썬

def solution(a, b):
    month = (31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31)
    day = ('SUN', 'MON', 'TUE', 'WED', 'THU', 'FRI', 'SAT')
    return day[(sum(month[0:a - 1]) + b + 4) % 7]

자바스크립트

function solution(a, b) {
    const month = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
    const day = ['SUN', 'MON', 'TUE', 'WED', 'THU', 'FRI', 'SAT'];
    return day[((a==1 ? 0 : month.slice(0, a-1).reduce((x,y)=>x+y))+ b + 4)%7];
}

자바

class Solution {
    public String solution(int a, int b) {
        String[] day = {"SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT"};
        short[] month = {0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
        int sum = b;
        for (short i = 0; i < a; i++) { sum += month[i]; }
        return day[(sum + 4) % 7];
    }
}

고

func solution(a int, b int) string {
	month := []int{31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}
	day := []string{"SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT"}
	date := 0
	for i := 0; i < a-1; i++ {
		date += month[i]
	}
	date += b
	return day[(date+4)%7]
}

코틀린

class Solution {
    fun solution(a: Int, b: Int): String {
        val day = arrayOf("SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT")
        val month = intArrayOf(31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31)
        return if (a == 1) day[(b + 4) % 7] else day[(month.slice(0 until a - 1).reduce { x, y -> x + y } + b + 4) % 7]
    }
}

C#

슬라이스가 있으면 쉽게 풀 수 있겠지만..

using System.Linq;

public class Solution
{
    public string solution(int a, int b)
    {
        int[] month = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
        string[] week = { "SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT" };
        return week[(month[0..(a-1)].Sum() + (b + 4)) % 7];
    }
}

이번에는 ArraySegment를 사용해 보자...

using System;
using System.Linq;

public class Solution
{
    public string solution(int a, int b)
    {
        int[] month = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
        string[] week = { "SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT" };
        return week[(new ArraySegment<int>(month, 0, a-1).Sum() + (b + 4)) % 7];
    }
}