我自己的想法也差不多写好了，大致也和题解差不多。。。
~~然而充满注释的代码有点奇怪~~
by Dawn_Chase @ 2019-03-28 20:49:00
@[Dawn_Chase](/space/show?uid=22913) 黑题蒟蒻%%%
by Lacer @ 2019-03-28 20:56:03
@[DDFrocket2](/space/show?uid=59142) 我这么菜的啊
by Dawn_Chase @ 2019-03-28 20:57:51
@[Dawn_Chase](/space/show?uid=22913) 看着红名做黑题还说自己蒟蒻%%%
by Lacer @ 2019-03-28 20:58:45
@[DDFrocket2](/space/show?uid=59142) 打卡水的。。
by Dawn_Chase @ 2019-03-28 21:00:02
@[Dawn_Chase](/space/show?uid=22913) dalao帮我调一下？注释都写好了[水题传送门](https://www.luogu.org/discuss/show/107058)
by Lacer @ 2019-03-28 21:02:23
@[DDFrocket2](/space/show?uid=59142) 蓝题切不动。。。
by Dawn_Chase @ 2019-03-28 21:03:04
@[Dawn_Chase](/space/show?uid=22913) 所以你去切黑？？（滑稽）
by Lacer @ 2019-03-28 21:04:38
机房fake现场
by sleepyNick @ 2019-03-28 21:11:09
预处理咕了。。。
by Dawn_Chase @ 2019-03-28 21:22:58