题解 | #明明的随机数#

import java.util.Scanner;

public class Main{
    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);

        int count = scanner.nextInt();
        Integer[] int_arr = new Integer[count];
        for(int i = 0;i<count;i++){
            int_arr[i] = scanner.nextInt();
        }
        int temp_number1;
        for(int j=0; j<count; j++){
            for(int i = 0; i<count-1; i++){
                if(int_arr[i]>=int_arr[i+1]){
                    temp_number1 = int_arr[i];
                    int_arr[i] = int_arr[i+1];
                    int_arr[i+1] = temp_number1;
                }
        }
        }
        int temp_number2;
        System.out.println(int_arr[0]);
        temp_number2 = int_arr[0];
        for(int i = 0; i<count-1; i++){
            if(int_arr[i+1] != temp_number2){
                System.out.println(int_arr[i+1]);
                temp_number2 = int_arr[i+1];
            }
        }
        scanner.close();
    }
}