"这种题都能XXXX"
ZJOI的题啊
太强了！
by newbie314159 @ 2018-01-30 22:26:00
您都去PKUWC了，像我这种蒟蒻还要考期末（卒
by ViXbob @ 2018-01-30 22:27:24
@[ViXbob](/space/show?uid=50971)
反正我pkuwc也GG了
by newbie314159 @ 2018-01-30 22:52:25
orzorzorzorz
by iodwad @ 2018-01-30 23:32:02
能否分享一下线段树做法？
by iodwad @ 2018-01-30 23:32:34
太强了，A穿Luogu了，IOI捧杯稳了 @[ViXbob](/space/show?uid=50971) %%%%
by EDT_ @ 2018-03-17 16:00:20