摘要：
迷宫城堡Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 4676Accepted Submission(s): 2043Problem Description为了训练小希的方向感，Gardon建立了一座大城堡，里面有N个房间(N
#include
#include
using namespace std;
const int mm=2e5+9;
int head[mm],next[mm],ver[mm],e_to[mm],edge;
int s 阅读全文