为啥有人直接复制别个的代码呀，你对着打一遍都行啊！

部分：

http://172.40.253.199/submission/157237 And http://172.40.253.199/submission/156680

http://172.40.253.199/submission/157965 And http://172.40.253.199/submission/158091

http://172.40.253.199/submission/144395 And http://172.40.253.199/submission/144382

其他的就不一一列举了

可以按代码长度排序，一个一个看，你会发现：欸这个好像跟上一个一样