import java.util.Arrays;
public class NumberK {
public int[] solution(int[] array, int[][] commands) {
int[] answer = new int[commands.length];
int[] temp;
int s, e, n;
for (int i = 0; i < commands.length; i++) {
s = commands[i][0];
e = commands[i][1];
n = commands[i][2];
temp = new int[e - s + 1];
temp = Arrays.copyOfRange(array, s - 1, e);
Arrays.sort(temp);
answer[i] = temp[n - 1];
}
return answer;
}
public static void main(String[] args) {
NumberK n = new NumberK();
int[] arr = { 1, 5, 2, 6, 3, 7, 4 };
int[][] com = { { 2, 5, 3 }, { 4, 4, 1 }, { 1, 7, 3 } };
for (int i = 0; i < n.solution(arr, com).length; i++) {
System.out.print(n.solution(arr, com)[i] + " ");
}
n.solution(arr, com);
}
}
- Arrays.copyOfRange 사용하는 문제 ; copyOfRange : 전달받은 배열의 특정 범위에 해당하는 요소만을 새로운 배열로 복사하여 반환
arr1 = Arrays.copyOfRange(arr2, int start_index, int end_index);