题解 | #明明的随机数#

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext()){
            //获取个数
            int num = sc.nextInt();
            //创建TreeSet进行去重排序
            TreeSet<Integer> set = new TreeSet();
            //输入
            for(int i =0 ; i < num ;i++){
                set.add(sc.nextInt());
            }
            //输出
            Iterator iterator = set.iterator();
            while (iterator.hasNext()){
                System.out.println(iterator.next());
            }
        }

    }
}