@[引领天下](/space/show?uid=39863) 哈希？但是WA一片，只有48分
by longlongzhu123 @ 2018-11-11 09:52:42
@[longlongzhu123](/space/show?uid=57525) 啊？？？
by 引领天下 @ 2018-11-11 09:53:28
哦，更新，Hash 72分
by longlongzhu123 @ 2018-11-11 09:54:16
https://www.luogu.org/recordnew/show/13646461
毒瘤调参中。。。
by longlongzhu123 @ 2018-11-11 09:54:46
@[引领天下](/space/show?uid=39863)
by longlongzhu123 @ 2018-11-11 09:54:57
@[longlongzhu123](/space/show?uid=57525) 怎么hash的啊……我们考场里有说区间DP的……
by 引领天下 @ 2018-11-11 09:56:23
对树hash啊，正着一遍反着一遍
by longlongzhu123 @ 2018-11-11 09:57:32
@[引领天下](/space/show?uid=39863) 区间DP？不行吧
by longlongzhu123 @ 2018-11-11 09:59:25
@[longlongzhu123](/space/show?uid=57525) 完蛋了……我看到题脑子一片空白，根本没想到hash……QAQ
by 引领天下 @ 2018-11-11 10:00:29
DP吧
by nofall @ 2018-11-11 10:11:23