摘要: ####LCA struct Edge{ int v,nxt; }edge[maxn]; int head[maxn],tot=0; inline void read(int &x){ x=0;char tmp=getchar(); while(tmp<'0'||tmp>'9')tmp=getcha 阅读全文
posted @ 2022-04-03 17:49 xyc1719 阅读(39) 评论(0) 推荐(0)