230810 과일 장수

public int solution(int k, int m, int[] score) {
	Arrays.sort(score);
	int answer = 0;

	for (int i = score.length - 1; i >= 0; i--) {
		int multiplier = (score.length - i) % m;
		if (multiplier == 0) {
			answer += score[i] * m;
		}
	}

	return answer;
}

출처:https://school.programmers.co.kr/learn/courses/30/lessons/135808