线段树空间开小了
by 浮尘ii @ 2019-05-18 23:13:53
@[XY_cpp](/space/show?uid=53410) 线段树应是4倍空间
by RiverFun @ 2019-05-18 23:19:09
谢谢指教
by XY_cpp @ 2019-05-19 00:06:31