Online Judge | Problem Set | Authors | Online Contests | User | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Web Board Home Page F.A.Qs Statistical Charts | Current Contest Past Contests Scheduled Contests Award Contest |
TTTTTTTTTTTTTTTTT了,2333333333333333333333#include<iostream> #include<cstdio> #include<vector> #include<cstring> using namespace std; const int mt=1000+5; int time[mt]; struct edgeedge { int to,next; } e[mt*2]; int head[mt],ind[mt],f[mt],vis[mt]; vector<int>ques[mt]; int findf(int a) { if(f[a]!=a) return f[a]=findf(f[a]); return a; } void uion(int u,int v) { int f1=findf(u),f2=findf(v); if(f1!=f2) f[f2]=f1; } void tarjan(int s) { int u=s; vis[u]=1,f[u]=u;//2333333333 int siz=ques[u].size(); for(int i=0; i<siz; i++)//为什么要先询问,再dfs更新 if(vis[ques[u][i]]) time[findf(ques[u][i])]++;//cout<<"i"<<i<<" "<<ques[u][i]<<" "<<findf(ques[u][i])<<endl;} for(int i=head[u]; i!=-1; i=e[i].next) { int v=e[i].to; if(!vis[v]) tarjan(v),uion(u,v); f[u]=u;//233333333 } } int c=0; void adde(int u,int v) { e[c].to=v; e[c].next=head[u]; head[u]=c++; } inline bool get(int &a) { char c; while(((c=getchar())<'0'||c>'9')&&c!=EOF); if(c==EOF)return 0; for(a=0; c>='0'&&c<='9'; c=getchar())a=a*10+c-'0'; return 1; } int main() { int n,s,t,k; while(get(n)) { for(int i=1; i<=n; i++) vis[i]=0,head[i]=-1,ind[i]=0,f[i]=i,ques[i].clear(),time[i]=0; for(int i=0; i<n; i++) { //int u,v,t; //scanf("%d:(%d)",&u,&t); get(s); get(k); for(int j=0; j<k; j++) { //scanf("%d",&v); get(t); adde(s,t),ind[t]++;//为什么是单向边 } } //int q; //scanf("%d",&q); get(k); for(int i=1; i<=k; i++) { /*int u,v; scanf(" (%d %d)",&u,&v); if(u==v) { time[u]++; //就当我无聊特判吧 continue; } ques[u].push_back(v); ques[v].push_back(u);*/ get(s); get(t); if(s==t) { f[s]++; continue; } ques[s].push_back(t); ques[t].push_back(s); } int s=0; for(int i=1; i<=n; i++) if(ind[i]==0) { s=i; break; } tarjan(s); for(int i=1; i<=n; i++) if(time[i]) printf("%d:%d\n",i,time[i]);//我改了半天,结果这里不能加&(这么...的错误) } return 0; } 我实在不想去改stl了,TLE的心累啊(QAQ,求助) Followed by:
Post your reply here: |
All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator