样例输出18
by Ryan_ @ 2019-08-06 11:21:52
感觉没有错啊~~烦躁~~
by Ryan_ @ 2019-08-06 11:22:17
你这个是前缀和最大值吧QWQ
by DarkValkyrie @ 2019-10-05 15:24:21
@[Ryan_](/space/show?uid=111289) 建议树剖QWQ
by DarkValkyrie @ 2019-10-05 15:25:06
@[DarkValkyrie](/space/show?uid=125299) 好久之前的了 现在已经会了谢谢qwq
by Ryan_ @ 2019-10-05 15:26:33
orz
by DarkValkyrie @ 2019-10-05 15:58:33