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);
        // 注意 hasNext 和 hasNextLine 的区别
        int a = in.nextInt();
        int num[] = new int[a];
        int i = 0;
        while (in.hasNextInt()) { // 注意 while 处理多个 case
            int b = in.nextInt();
            num[i++] = b;
        }
        for(int m = 0;m < a-1;m++){
            if(num[m] == 0){
                continue;
            }
            for(int n = m+1;n < a;n++){
                if(num[m]==num[n]){
                    num[n]= 0;
                }else if(num[m]>=num[n]){
                    int temp = num[m];
                    num[m] = num[n];
                    num[n] = temp; 
                }
            }
        }
        for(int j:num){
            if(j== 0){
                continue;
            }
            System.out.println(j);
        }
         
    }
}