为啥会有后效性 我认为没有 这状压DP长得挺标准啊
by Resolute_Faith @ 2022-07-23 15:58:56
@[Resolute_Faith](/user/754746) [看这里](https://www.luogu.com.cn/discuss/408272)
by George_Je @ 2022-10-07 20:06:25