题解 | #明明的随机数#

import java.util.Scanner;
import java.util.Arrays;

// 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);
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNextInt()) { // 注意 while 处理多个 case
            int a = in.nextInt();
            int[] RrmArray = new int[a];
            for (int i = 0; i < a; i++) {
                RrmArray[i] = in.nextInt();
            }
            Arrays.sort(RrmArray);
            int per = Integer.MIN_VALUE;
            for (int temp : RrmArray) {
                if (temp > per) {
                    System.out.println(temp);
                    per = temp;
                }
            }
        }
    }
}