1. 二分图匹配(Bipartite Matching)
1.1 匹配(Matching)
Def. Given an undirected graph \(G = (V, E)\), subset of edges \(M ⊆ E\) is a matching if each node appears in at most one edge in \(M\).
定义....
P3128 [USACO15DEC]最大流Max Flow
题目描述
Farmer John has installed a new system of pipes to transport milk between the stalls in his barn (), conveniently numbered . Eac...
1 #include<bits/stdc++.h>
2 #define int long long
3 using namespace std;
4 const int maxn=5005;
5 const int inf=0x3f3f3f3f;
6 int tot,n,m,s,t,x,y,z,d[maxn];
7 int adj[maxn],nex[maxn<...
记得把数组开大一点,不然就RE了。。。
1 #include<bits/stdc++.h>
2 using namespace std;
3 #define int long long
4 const int N=5e5;
5 const int M=5e5;
6 const int INF=0x3f3f3f3f;
7
8 int...
Marriage Match II
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3558 Accepted Submission(s): 115...
HDU 3081 Marriage Match II (网络流,最大流,二分,并查集)
Description
Presumably, you all have known the question of stable marriage match. A girl will choose a boy; it is similar as the game of playi...