题解 | #明明的随机数#

//题目要去重排序 
//数据结构想到TreeSet， Tree有序的，set去重
import java.util.*;
public class Main{
    public static void  main(String[] args){
        Scanner scanner = new Scanner(System.in);
        while(scanner.hasNext()){
            int num =scanner.nextInt();
            //创建TreeSet进行去重排序
            TreeSet set = new TreeSet(); 
            for(int i =0 ; i < num ;i++){
                 set.add(scanner.nextInt());
            }
            //遍历TreeSet，输出
            Iterator iterator = set.iterator();
            while(iterator.hasNext()){
                System.out.println(iterator.next());
            }
        }
    }
}