题解 | #明明的随机数#

import java.util.Scanner;
import java.util.TreeSet;

/**
 * 明明的随机数
 *
 */
public class Main_3 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int length = scanner.nextInt();

        TreeSet<Integer> treeSet = new TreeSet<>();
        while (scanner.hasNextInt()) {
            treeSet.add(scanner.nextInt());
        }

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