출제 링크 : programmers.co.kr/learn/courses/30/lessons/12910
import java.util.*;
class Solution {
public int[] solution(int[] arr, int divisor) {
List<Integer> answer = new ArrayList<>();
for (int num : arr) {
if (num % divisor == 0) {
answer.add(num);
}
}
Collections.sort(answer);
if (answer.isEmpty()) {
answer.add(-1);
}
return answer.stream().mapToInt(i -> i.intValue()).toArray();
}
}