🐣 문제

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

🐥 코드

#include <string>
#include <vector>

using namespace std;

string solution(int a, int b) {
    string answer = "";
    int month[12] = {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
    string day[7] = {"THU", "FRI", "SAT", "SUN", "MON", "TUE", "WED",};
    
    int sum = 0;
    for(int i = 0; i < a - 1; i ++){
        sum += month[i];
    }
    
    sum += b;
    
    answer = day[sum % 7];
    return answer;
}