题解 | 明明的随机数

import java.util.Scanner;
import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;
import java.util.stream.Stream;
// 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 in = new Scanner(System.in);
        int n = in.nextInt();
        Set<Integer> set = new HashSet<>();
        for (int i = 0; i < n; i++) {
            set.add(in.nextInt());
        }
        Stream<Integer> sorted = set.stream().sorted();
        sorted.forEach(
                System.out::println
        );
    }
}