[프로그래머스] 배열 회전시키기 --java

https://school.programmers.co.kr/learn/courses/30/lessons/120844

프로그래머스

문제)정수가 담긴 배열 numbers와 문자열 direction가 매개변수로 주어집니다. 배열 numbers의 원소를 direction방향으로 한 칸씩 회전시킨 배열을 return하도록 solution 함수를 완성해주세요.

 

 

 

 

 

풀이)

class Solution {
    public int[] solution(int[] numbers, String direction) {
        int[] answer = new int[numbers.length];

        if(direction.equals("right")){
            answer[0] = numbers[numbers.length-1];
            for(int i=0; i< numbers.length-1; i++){
                answer[i+1] = numbers[i];
            }
        }else if(direction.equals("left")){
            for(int i=0; i< answer.length-1; i++){
                answer[i] = numbers[i+1];
            }
            answer[answer.length-1] = numbers[0];
        }
        
        return answer;
    }
}