[프로그래머스] Lv.1 K번째수.java

K번째수.java

import java.util.Arrays;

class Solution {
    public int[] solution(int[] array, int[][] commands) {
        int[] answer = new int[commands.length];

        for (int i = 0; i < commands.length; i++) {
            int[] command = commands[i];
            int start = command[0] - 1;
            int end = command[1];
            int k = command[2];

            int[] subArray = Arrays.copyOfRange(array, start, end);
            Arrays.sort(subArray);
            answer[i] = subArray[k - 1];
        }

        return answer;
    }
}

출처: 프로그래머스 코딩 테스트 연습, https://school.programmers.co.kr/learn/challenges