@YYR召唤DaLao

P4114 Qtree1

啊?
by iwprc @ 2018-10-25 23:43:29


@[U41485](/space/show?uid=41485) 666好久没@你了,好像@你呀!!@[U41485](/space/show?uid=41485)@[U41485](/space/show?uid=41485)@[U41485](/space/show?uid=41485)@[U41485](/space/show?uid=41485)@[U41485](/space/show?uid=41485)@[U41485](/space/show?uid=41485)@[U41485](/space/show?uid=41485)
by Sshenyyyu @ 2018-10-25 23:44:36


。。。
by AK_Automata @ 2018-10-25 23:45:28


%%%orz@[U41485](/space/show?uid=41485)
by AK_Automata @ 2018-10-25 23:45:42


谁告诉你单点修改区间查询要$pushdown$的?
by iwprc @ 2018-10-25 23:47:09


又是紫题&树剖。。。
by AK_Automata @ 2018-10-25 23:47:39


不知道,我也不知道什么时候要pushdown呀
by Sshenyyyu @ 2018-10-25 23:47:45


%%% ~~今年不考树剖真对不起您这份执着。。。。 qwq~~
by 繁星灬夏若離 @ 2018-10-25 23:48:30


楼上2位。。。
by AK_Automata @ 2018-10-25 23:48:49


@[繁星灬夏若離](/space/show?uid=37118) ~~楼上是我npy~~
by Sshenyyyu @ 2018-10-25 23:49:11


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