프로그래머스 - 카카오

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

프로그래머스

: 개인정보 수집 유효기간

import java.util.*;
class Solution {
    public int[] solution(String today, String[] terms, String[] privacies) {
        System.out.println(today);
        String[] todayarr = today.split("\\.");
        // System.out.println(Arrays.toString(todayarr));
        Map<Character, Integer> map = new HashMap<>();
        for(String str : terms){
            String[] a=str.split(" ");

            map.put(a[0].charAt(0), Integer.valueOf(a[1]));
        }
        List<Integer> list = new ArrayList<>();
        int cnt=0;
        int a=1;
        for(String str : privacies){
            String[] pv = str.split(" ");
            String[] arr= pv[0].split("\\.");//달
            // System.out.println(Arrays.toString(arr));
            int x=map.get(pv[1].charAt(0));
            
            int y = Integer.parseInt(arr[0]);
            int m = Integer.parseInt(arr[1]);
            int d = Integer.parseInt(arr[2]);

            int day1= d + m * 28 + (y) * 12 * 28;
            y = Integer.parseInt(todayarr[0]);
            m = Integer.parseInt(todayarr[1]);
            d = Integer.parseInt(todayarr[2]);
            int day2= d + m * 28 + (y) * 12 * 28;
            
            System.out.println();
            if(day1+(x*28)<=day2){
                list.add(a);
                cnt++;
            }
          a++;
        }
        System.out.println(cnt);
        int[] answer = new int[cnt];
        int b=0;
        for(int x: list) answer[b++]=x;
        return answer;
    }
}