~~刚看到还以为是讨论区题解。~~
by Iniaugoty @ 2023-02-27 21:31:49
你说得对,但是区间 dp 不香吗?
by Iniaugoty @ 2023-02-27 21:33:17
@[gty314159](/user/768612) 我是垃圾,不会dp啊
by Tryst @ 2023-02-27 23:16:07
@[Tryst](/user/616733) wmyr,强大!
by Snowy_Fujisaki @ 2024-05-06 21:32:24