ํ๋ก๊ทธ๋๋จธ์ค Level1 : ์ถ์ต ์ ์ ๋ฌธ์ import java.util.HashMap; class Solution { public int[] solution(String[] name, int[] yearning, String[][] photo) { HashMap<String,Integer> yearningMap = new HashMap<String,Integer>(); for(int i=0; i<name.length; i++){ yearningMap.put(name[i],yearning[i]); } int[] answer = new int[photo.length]; for(int i=0; i<photo.length; i++){ int sum = 0; for(int j=0; j<photo[i].length; j++){ sum += yearningMap.get(photo[i][j])==null?0:yearningMap.get(photo[i][j]); } answer[i] = sum; } return answer; } }