题解 | #明明的随机数#

import java.util.*;

// 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 scanner = new Scanner(System.in);
        Integer num = scanner.nextInt();
        List<Integer> list = new ArrayList<>();
        while (scanner.hasNext()) {
            list.add(scanner.nextInt());
            if (list.size() == num) {
                break;
            }
        }

        TreeSet<Integer> treeSet = new TreeSet<>(list);

        for(Integer i : treeSet){
            System.out.println(i);
        }
    }
}