[프로그래머스/자바] 약수 구하기

import java.util.ArrayList;
import java.util.List;

class Solution {
    public int[] solution(int n) {
        List<Integer> list = new ArrayList<>();
        for(int i=1; i<=n; i++){
            if(n % i == 0) list.add(i);
        }
        int[] result = new int[list.size()];
        for(int i=0; i<list.size(); i++){
            result[i] = list.get(i);
        }
        return result;
    }
}

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import java.util.stream.IntStream;
import java.util.Arrays;

class Solution {
    public int[] solution(int n) {
        return IntStream.rangeClosed(1, n).filter(i -> n % i == 0).toArray();
    }
}