[JAVA] 개인정보 수집 유효기간

https://school.programmers.co.kr/learn/courses/30/lessons/150370

프로그래머스

package programmers;

import java.util.ArrayList;

import java.util.Arrays;
import java.util.HashMap;

public class kakao2023_1 {

    static HashMap<String, String> terms_data;

    public int[] solution(String today, String[] terms, String[] privacies) {
        ArrayList<Integer> ans = new ArrayList<>();

        terms_data = new HashMap<>();

        for (int i = 0; i < terms.length; i++) {
            String[] info = terms[i].split(" ");
            terms_data.put(info[0], info[1]);
        }

        int today_year = Integer.parseInt(today.split("\\.")[0]);
        int today_month = Integer.parseInt(today.split("\\.")[1]);
        int today_day = Integer.parseInt(today.split("\\.")[2]);
        int today_cnt = (today_year * 12 * 28) + (today_month * 28) + today_day;

        for (int i = 0; i < privacies.length; i++) {

            String terms_info = String.valueOf(privacies[i].charAt(privacies[i].length() - 1));

            int addMonth = Integer.parseInt(terms_data.get(terms_info));
            
            String[] data_info = privacies[i].split(" ")[0].split("\\.");
            int year = Integer.parseInt(data_info[0]);
            int month = Integer.parseInt(data_info[1]);
            int day = Integer.parseInt(data_info[2]);

            month += addMonth;
            if (month > 12) {
                year = ((month) / 12) + year;
                if (month % 12 == 0) {
                    year -= 1;
                    month = 12;
                } else {
                    month %= 12;
                }
            }
            day -= 1;
            if (day == 0) {
                day = 28;
                month -= 1;
                if (month == 0) {
                    year -= 1;
                    month = 12;
                }
            }
            int passCnt = (year * 12 * 28) + (month * 28) + day;
            if (passCnt < today_cnt) {
                ans.add(i + 1);
            }

        }
        int[] answer = ans.stream()
                .mapToInt(i -> i)
                .toArray();
        System.out.println(Arrays.toString(answer));
        return answer;
    }

    public static void main(String[] args) {
        kakao2023_1 s = new kakao2023_1();
        String today = "2022.05.19";
        String[] terms = {"A 6", "B 12", "C 3"};
        String[] privacies = {"2021.05.02 A", "2021.07.01 B", "2022.02.19 C", "2022.02.20 C"};
        System.out.println(s.solution(today, terms, privacies));
    }

}