// -*- c++ -*-

 #include <iostream>

 #include <fstream>

 #include <vector>

 #include <list_graph.h>

 //#include <smart_graph.h>

 //#include <dimacs.h>

 #include <time_measure.h>

 #include <for_each_macros.h>

 #include <bfs_iterator.h>

 #include <graph_wrapper.h>

 #include <maps.h>

 #include <edmonds_karp.h>

 using namespace hugo;

 int main() {

   typedef UndirListGraph Graph; 

   typedef Graph::Node Node;

   typedef Graph::NodeIt NodeIt;

   typedef Graph::Edge Edge;

   typedef Graph::EdgeIt EdgeIt;

   typedef Graph::OutEdgeIt OutEdgeIt;

   Graph g;

   //Node s, t;

   //Graph::EdgeMap<int> cap(g);

   //readDimacsMaxFlow(std::cin, g, s, t, cap);

   std::vector<Graph::Node> s_nodes;

   std::vector<Graph::Node> t_nodes;

   for (int i=0; i<3; ++i) s_nodes.push_back(g.addNode());

   for (int i=0; i<3; ++i) t_nodes.push_back(g.addNode());

   g.addEdge(s_nodes[0], t_nodes[2]);

   g.addEdge(t_nodes[1], s_nodes[2]);

   Graph::NodeMap<int> ref_map(g, -1);

   IterableBoolMap< Graph::NodeMap<int> > bipartite_map(ref_map);

   for (int i=0; i<3; ++i) bipartite_map.insert(s_nodes[i], false);

   for (int i=0; i<3; ++i) bipartite_map.insert(t_nodes[i], true);

   typedef BipartiteGraphWrapper<Graph> BGW;

   BGW bgw(g, bipartite_map);

   FOR_EACH_LOC(BGW::EdgeIt, e, bgw) {

     std::cout << bgw.tail(e) << "->" << bgw.head(e) << std::endl;

   }

   BGW::NodeMap<int> dbyj(bgw);

   BGW::EdgeMap<int> dbyxcj(bgw);

   typedef stGraphWrapper<BGW> stGW;

   stGW stgw(bgw);

   ConstMap<stGW::Edge, int> const1map(1);

   stGW::NodeMap<int> ize(stgw);

   stGW::EdgeMap<int> flow(stgw);

   BfsIterator< BGW, BGW::NodeMap<bool> > bfs(bgw);

   Graph::NodeIt si;

   Graph::Node s; 

   s=g.first(si);

   bfs.pushAndSetReached(BGW::Node(s));

   while (!bfs.finished()) ++bfs;

   BGW::EdgeMap<bool> cap(bgw);

   BGW::EdgeMap<bool> flow1(bgw);

   typedef ResGraphWrapper< BGW, int, BGW::EdgeMap<bool>, BGW::EdgeMap<bool> > 

     RBGW;

   RBGW rbgw(bgw, cap, flow1);

   RBGW::NodeMap<int> u(rbgw);

   MaxFlow<stGW, int, ConstMap<stGW::Edge, int>, stGW::EdgeMap<int> > 

     max_flow_test(stgw, stgw.S_NODE, stgw.T_NODE, const1map, flow);

   max_flow_test.augmentOnShortestPath();

   max_flow_test.augmentOnShortestPath();

   std::cout << max_flow_test.flowValue() << std::endl;

   return 0;

 }