Level1_K번째 수 (JAVA)

코딩테스트 연습 - K번째수

import java.util.*;

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

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

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

 

 

array.clone() : 배열 복사

int[] arr = {1,2,3};

int[] copyArr = arr.clone(); // copyArr = {1,2,3}

 

Arrays.copyOfRange() : 배열을 시작~끝-1 만큼 복사 

int[] arr = {1,2,3,4,5};

int[] copyArr = Arrays.copyOfRange(arr, 1, 3); // copyArr = {2,3}