// -*- 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;

}