✔ 문제

✔ 해결

class Solution {
  public int[] solution(int[] numbers, String direction) {
    int[] answer = new int[numbers.length];
    
    if(direction.equals("right")) {
      for(int i = 1; i < numbers.length; i++) {
	  	answer[i] = numbers[i - 1];
      }
      answer[0] = numbers[numbers.length - 1];
    }else {
      for(int i = 0; i < numbers.length - 1; i++) {
	  	answer[i] = numbers[i + 1];
      }
      answer[numbers.length - 1] = numbers[0];
    }
    
    return answer;
  }
}