https://school.programmers.co.kr/learn/courses/30/lessons/12932
문제 설명
제한사항
class Solution {
public int[] solution(long n) {
String str = n + "";
int[] answer = new int[str.length()];
for(int i = str.length() - 1; i >= 0; i--) {
answer[str.length() - i - 1] = str.charAt(i) - '0';
}
return answer;
}
}