[프로그래머스] 추억점수

 

public int[] solution(String[] name, int[] yearning, String[][] photo) {
        int [] answer = new int[photo.length];
        Map<String,Integer> nameMap = new HashMap<>();
        for(int i=0; i<name.length; i++){
            nameMap.put(name[i],yearning[i]);
        }

        int i = 0;
        for(String[] p : photo ){
            int sum = 0;
            for(String v : p ) {
                if(nameMap.get(v) != null){
                    sum += nameMap.get(v);
                }
            }
            answer[i] = sum;
            i++;
        }

        return answer;
    }

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

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