프로그래머스 Lv.0 5명씩

 

<Solution>

class Solution {
    public String[] solution(String[] names) {
        int len = (int) Math.ceil(names.length / (double) 5);
        String[] answer = new String [len];
        
        int idx = 0;
        for(int i = 0; i < names.length; i++) {
            if(i == 0 || i % 5 == 0) {
                answer[idx++] = names[i];
            }
        }
        return answer;
    }
}