## `💬 문제` [[코딩테스트 연습 - 3진법 뒤집기](https://school.programmers.co.kr/learn/courses/30/lessons/68935)](https://school.programmers.co.kr/learn/courses/30/lessons/68935) <br> ## `💬 풀이` ```swift func solution(_ n:Int) -> Int { return Int(String(String(n, radix: 3).reversed()), radix: 3)! } ```