题解 | #明明的随机数#

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

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        // 获取输入整数的个数
        int num = scanner.nextInt();
        int[] arr = new int[num];
        for (int i = 0; i < num; i++) {
            arr[i] = scanner.nextInt();
        }
//        System.out.println(Arrays.toString(arr));
        Arrays.sort(arr);
//        System.out.println(Arrays.toString(arr));
        for (int i = 0; i < num; i++) {
            if(i == num -1){
                System.out.println(arr[i]);
                break;
            }
            // 前后不相等的情况，输入前面的值
            if(arr[i] != arr[i+1]){
                System.out.println(arr[i]);
            }else{
                // 前后相等的情况，直接跳过，i++

            }
        }
    }
}