题解 | #输入整型数组和排序标识，对其元素按照升序或降序#

import java.util.Scanner;
import java.util.ArrayList;
import java.util.Collections;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int totalNum = in.nextInt();
        ArrayList<Integer> arrayList = new ArrayList<>();
        for (int i = 0; i < totalNum; i++)
            arrayList.add(in.nextInt());
        int sort = in.nextInt();
        Collections.sort(arrayList);
        if (sort == 0) {
            for (Integer integer : arrayList)
                System.out.print(integer + " ");
        } else
            for (int i = arrayList.size() - 1; i >= 0; i--)
                System.out.print(arrayList.get(i) + " ");
    }
}