为什么我想到了二分答案。。。
by Divinitist @ 2018-11-08 20:49:25
intitialize海星。
by ErkkiErkko @ 2018-11-08 20:50:09
显然是最大生成树+LCA 啊
by wangml @ 2018-11-08 20:50:12
@[随风灬浅殇丿](/space/show?uid=19815)
@[ywh666](/space/show?uid=55703)
by wangml @ 2018-11-08 20:54:04
数组爆了
by ywh666 @ 2018-11-08 21:20:05
f[maxn][21]还f[u][i+1]=f[f[u][i]][i];
by ywh666 @ 2018-11-08 21:20:57
@[wangml](/space/show?uid=21656)
by ywh666 @ 2018-11-08 21:24:34
不是这个问题
by wangml @ 2018-11-08 21:25:54
@[ywh666](/space/show?uid=55703)
by wangml @ 2018-11-08 21:26:04
那我不知道了
我这么蠢的
by ywh666 @ 2018-11-08 21:27:34