您两小时做树链剖分
~~我白学了~~
by Polaris_Dane @ 2019-09-21 19:16:57
我白学了
by ADivT @ 2019-09-21 19:24:49
萌新写树剖?
by Nameless_a @ 2019-09-21 19:31:57
@[小蒟蒻皮皮鱼](/space/show?uid=177510) 萌新不能学树剖
by Lates @ 2019-09-21 19:35:26
@[小蒟蒻皮皮鱼](/space/show?uid=177510) 先看top有没有问题，再看线段树
by 斗神_君莫笑 @ 2019-09-21 19:35:28
QNDMX
by Sya_Resory @ 2019-09-21 19:40:59
我太蒻了
by 颓废的鲈鱼 @ 2019-09-21 19:41:29
好吧，我貌似zz的把tree和sum混用了
我真是萌新/可怜
by 小蒟蒻皮皮鱼 @ 2019-09-21 19:48:47
????
by qwerty0862 @ 2019-09-21 19:49:54