카운트 다운

https://school.programmers.co.kr/learn/courses/30/lessons/181899

• 문제 풀이

import java.util.*;

class Solution {
    public List<Integer> solution(int start_num, int end_num) {
        List<Integer> result = new ArrayList<>();

        for (int i = start_num; i >= end_num; i--) {
            result.add(i);
        }

        return result;
    }
}