fatal1ty
2020-10-20T12:54:23+00:00
这题目是不是出的有问题?第三层是从上面数还是下面数?
[img]https://img.nga.178.com/attachments/mon_202010/27/-7Q5-jzjzK1vT3cSlc-sg.jpg.medium.jpg[/img]
[img]https://img.nga.178.com/attachments/mon_202010/27/-7Q5-jzjzK1vT3cSlc-sg.jpg.medium.jpg[/img]