source: lemon-0.x/src/work/athos/pf_demo.cc @ 241:4acba8684811

#include <iostream>
#include <vector>
#include <string>

#include "list_graph.hh"
#include "marci_graph_traits.hh"
//#include "marci_property_vector.hh"
#include "preflow_push.hh"

using namespace hugo;


int main (int, char*[])
{

  
  typedef ListGraph::NodeIt NodeIt;
  typedef ListGraph::EdgeIt EdgeIt;
  /*
  typedef ListGraph::EachNodeIt EachNodeIt;
  typedef ListGraph::EachEdgeIt EachEdgeIt;
  typedef ListGraph::OutEdgeIt OutEdgeIt;
  typedef ListGraph::InEdgeIt InEdgeIt;
  typedef ListGraph::SymEdgeIt SymEdgeIt;
  */
  ListGraph flowG;

  /*
  //Marci példája


  NodeIt s=flowG.addNode();
  NodeIt v1=flowG.addNode();
  NodeIt v2=flowG.addNode();
  NodeIt v3=flowG.addNode();
  NodeIt v4=flowG.addNode();
  NodeIt t=flowG.addNode();
  

  EdgeIt s_v1=flowG.addEdge(s, v1);
  EdgeIt s_v2=flowG.addEdge(s, v2);
  EdgeIt v1_v2=flowG.addEdge(v1, v2);
  EdgeIt v2_v1=flowG.addEdge(v2, v1);
  EdgeIt v1_v3=flowG.addEdge(v1, v3);
  EdgeIt v3_v2=flowG.addEdge(v3, v2);
  EdgeIt v2_v4=flowG.addEdge(v2, v4);
  EdgeIt v4_v3=flowG.addEdge(v4, v3);
  EdgeIt v3_t=flowG.addEdge(v3, t);
  EdgeIt v4_t=flowG.addEdge(v4, t);

  ListGraph::EdgeMap<int> cap(flowG);

  cap.set(s_v1, 16);
  cap.set(s_v2, 13);
  cap.set(v1_v2, 10);
  cap.set(v2_v1, 4);
  cap.set(v1_v3, 12);
  cap.set(v3_v2, 9);
  cap.set(v2_v4, 14);
  cap.set(v4_v3, 7);
  cap.set(v3_t, 20);
  cap.set(v4_t, 4);
  */


  //Ahuja könyv példája

  NodeIt s=flowG.addNode();
  NodeIt v2=flowG.addNode();
  NodeIt v3=flowG.addNode();
  NodeIt v4=flowG.addNode();
  NodeIt v5=flowG.addNode();
  NodeIt t=flowG.addNode();

  EdgeIt s_v2=flowG.addEdge(s, v2);
  EdgeIt s_v3=flowG.addEdge(s, v3);
  EdgeIt v2_v4=flowG.addEdge(v2, v4);
  EdgeIt v2_v5=flowG.addEdge(v2, v5);
  EdgeIt v3_v5=flowG.addEdge(v3, v5);
  EdgeIt v4_t=flowG.addEdge(v4, t);
  EdgeIt v5_t=flowG.addEdge(v5, t);
  
  //Kis modositas
  //edge_iterator v2_s=flowG.add_edge(v2, s);

  ListGraph::EdgeMap<int> cap(flowG);

  cap.set(s_v2, 10);
  cap.set(s_v3, 10);
  cap.set(v2_v4, 5);
  cap.set(v2_v5, 8);
  cap.set(v3_v5, 5);
  cap.set(v4_t, 8);
  cap.set(v5_t, 8);

  //Kis modositas
  //cap.put(v2_s, 100);
 



  /*Egyszerû példa
  NodeIt s=flow_test.add_node();
  NodeIt v1=flow_test.add_node();
  NodeIt v2=flow_test.add_node();
  NodeIt t=flow_test.add_node();
  
  node_property_vector<list_graph, std::string> node_name(flow_test);
  node_name.put(s, "s");
  node_name.put(v1, "v1");
  node_name.put(v2, "v2");
  node_name.put(t, "t");

  edge_iterator s_v1=flow_test.add_edge(s, v1);
  edge_iterator v1_v2=flow_test.add_edge(v1, v2);
  edge_iterator v2_t=flow_test.add_edge(v2, t);

  edge_property_vector<list_graph, int> cap(flow_test); 
    
  cap.put(s_v1, 16);
  cap.put(v1_v2, 10);
  cap.put(v2_t, 4);
  */

  std::cout << "preflow-push algorithm test..." << std::endl;

  /*
  std::cout << "on directed graph graph" << std::endl; //<< flow_test;
  std::cout << "names and capacity values" << std::endl; 
  for(EachNodeIt i=flow_test.first_node(); i.valid(); ++i) { 
    std::cout << node_name.get(i) << ": ";
    std::cout << "out edges: ";
    for(out_edge_iterator j=flow_test.first_out_edge(i); j.valid(); ++j) 
      std::cout << node_name.get(flow_test.tail(j)) << "-"<< cap.get(j) << "->" << node_name.get(flow_test.head(j)) << " ";
    std::cout << "in edges: ";
    for(in_edge_iterator j=flow_test.first_in_edge(i); j.valid(); ++j) 
      std::cout << node_name.get(flow_test.tail(j)) << "-"<< cap.get(j) << "->" << node_name.get(flow_test.head(j)) << " ";
    std::cout << std::endl;
  }
  */
  
  //for(each_NodeIt i=flow_test.first_node(); i.valid(); ++i) { 
  //  std::cout << i << " ";
  //}
  
  preflow_push<ListGraph, int> preflow_push_test(flowG, s, t, cap);
  cout << preflow_push_test.run()<<endl;

  //cap.put(v5_t, 9);
  //cout << preflow_push_test.run()<<endl;

  return 0;
}