题解 | #明明的随机数#

import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in.hasNextInt()) { 
            int a = in.nextInt();
            int b[] = new int[a];
            //TreeSet去重加排序
            Set<Integer> ts = new TreeSet<>();
            for(int i = 0; i<b.length; i++){
                b[i] = in.nextInt();
                ts.add(b[i]);
            }
            //打印TreeSet中的元素
            for(Integer i : ts){
                System.out.println(i);
            }
        }
    }
}