出门左转，洛谷日报，走好不送
by UKE自动稽 @ 2018-08-19 16:04:14
[你谷日报了解一下](https://pks-loving.blog.luogu.org/zi-fu-chuan-xue-xi-bi-ji-qian-xi-kmp-xuan-xue-di-dan-mu-shi-chuan-pi-post)
by little_gift @ 2018-08-19 16:04:41
~~有hash还要什么KMP~~
by xenonex @ 2018-08-19 16:22:21