题解 | #明明的随机数#

import java.util.Scanner;

// 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 num = in.nextInt();
            int[] bucket= new int[501];
            while (in.hasNextInt()) { 
                int val = in.nextInt();
                bucket[val]=val;
            }
            for (int i = 0; i < bucket.length; i++) {
                if (bucket[i] != 0) {
                    System.out.println(bucket[i]);
                }
            }
        }
}