~~333~~
by 陈卓_ying @ 2018-05-03 13:35:36
这题的描述实际上应该见[这里](http://www.usaco.org/index.php?page=viewproblem2&cpid=840&lang=zh)
by q234rty @ 2018-05-27 16:56:04
现在的描述还是错的QwQ
by q234rty @ 2018-05-27 16:56:39
@[q234rty](/space/show?uid=3720) @[Marser](/space/show?uid=17930) fixed
by kkksc03 @ 2018-05-28 14:13:47