추억 점수 (연습문제)

원본 : https://school.programmers.co.kr/learn/courses/30/lessons/176963

프로그래머스

 

풀이

import java.util.HashMap;
import java.util.Map;

class Solution {
    public int[] solution(String[] name, int[] yearning, String[][] photo) {
        Map<String, Integer> map = new HashMap<>();

        for (int i = 0; i < name.length; i++) {
            map.put(name[i], yearning[i]);
        }

        int[] answer = new int[photo.length];

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

            for (String key : photo[i]) {
                if (map.containsKey(key)) {
                    sum += map.get(key);
                }
            }

            answer[i] = sum;
        }

        return answer;
    }
}