출제 링크 : programmers.co.kr/learn/courses/30/lessons/12903
class Solution {
public String solution(String s) {
String answer = "";
if (s.length() % 2 == 0) {
answer = s.substring((s.length() / 2) - 1, (s.length() / 2) + 1);
} else {
answer = s.substring(s.length() / 2, (s.length() / 2) + 1);
}
return answer;
}
}