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);
        while (scanner.hasNext()) {
            String next = scanner.next();
            int number = Integer.parseInt(next);
            Set<Integer> set = new HashSet<>();
            for (int i = 0; i < number; i++) {
                int random = Integer.parseInt(scanner.next());
                set.add(random);
            }
            Integer[] arrays = set.toArray(new Integer[set.size()]);
            Arrays.sort(arrays);
            for (Integer array : arrays) {
                System.out.println(array);
            }
        }
    }
}