@[speaker](/space/show?uid=55904) 就是那道严格次小生成树啊,一样的
by ycyaw @ 2019-04-18 21:21:37
P4180
by ycyaw @ 2019-04-18 21:21:54
~~您好,为什么不用友善的 LCT 呢?~~
by hsfzLZH1 @ 2019-04-18 21:30:15
~~您好,为什么不用友善的树剖呢?~~
by asuldb @ 2019-04-18 21:57:40
~~您好,为什么不写LCA呢?~~
by smarthehe @ 2019-04-18 22:48:06