Opened this issue 7 years ago · 0 comments
https://waautomaton.tk/2017/10/18/bzoj-2049-lg-2147-SDOI-2008-Cave-%E6%B4%9E%E7%A9%B4%E5%8B%98%E6%B5%8B-%E9%A2%98%E8%A7%A3/