摘要：
void dfs1(int u,int f) { fa[u]=f,siz[u]=1,dep[u]=dep[f]+1; int maxson = -1; for(int i=Head[u];~i;i=Edge[i].next) { int &v = Edge[i].to; if(v==f) continue; dfs1(v,u); siz[u]+=siz[v]; if(siz[v]>maxson) 阅读全文
摘要：
Scores of Final Examination On-Screen Keyboard Tally Counters Balance Scale 阅读全文