题解 | #明明的随机数#

 

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

        int size = sc.nextInt();
        ArrayList<Integer> input = new ArrayList<Integer>(size);

        while(sc.hasNext()){
            input.add(sc.nextInt());
        }
        input.sort(Comparator.naturalOrder());
        
        for(int i=0; i<size; i++){
            if(input.size()>i+1){
                if(input.get(i)==input.get(i+1))
                    continue;
                System.out.println(input.get(i));
            }else{
                System.out.println(input.get(i));
            }
        }
    }