A - Unique Attack Time Limit: 6000/3000MS (Java/Others) Memory Limit: 128000/64000KB (Java/Others) Problem Description N supercomputers in the United States of Antarctica are connected into a network. A network has a simple topology: M different…
vjudge sol 最小割判定唯一性. 只要做完一个任意最小割后,判断一下是不是所有点都要么和\(S\)相连,要么和\(T\)相连. 只要两边各一次\(dfs\)就行了. code #include<cstdio> #include<algorithm> #include<cstring> #include<queue> using namespace std; int gi() { int x=0,w=1;char ch=getchar(); while…