lemon-0.x: src/work/athos/pf_demo.cc@69b2d279c8f0

     1 #include <iostream>

     2 #include <vector>

     3 #include <string>

     5 #include "list_graph.hh"

     6 #include "marci_graph_traits.hh"

     7 //#include "marci_property_vector.hh"

     8 #include "preflow_push.hh"

    10 using namespace marci;

    13 int main (int, char*[])

    14 {

    17   typedef ListGraph::NodeIt NodeIt;

    18   typedef ListGraph::EdgeIt EdgeIt;

    19   /*

    20   typedef ListGraph::EachNodeIt EachNodeIt;

    21   typedef ListGraph::EachEdgeIt EachEdgeIt;

    22   typedef ListGraph::OutEdgeIt OutEdgeIt;

    23   typedef ListGraph::InEdgeIt InEdgeIt;

    24   typedef ListGraph::SymEdgeIt SymEdgeIt;

    25   */

    27   //Marci példája

    28   ListGraph flowG;

    30   NodeIt s=flowG.addNode();

    31   NodeIt v1=flowG.addNode();

    32   NodeIt v2=flowG.addNode();

    33   NodeIt v3=flowG.addNode();

    34   NodeIt v4=flowG.addNode();

    35   NodeIt t=flowG.addNode();

    38   EdgeIt s_v1=flowG.addEdge(s, v1);

    39   EdgeIt s_v2=flowG.addEdge(s, v2);

    40   EdgeIt v1_v2=flowG.addEdge(v1, v2);

    41   EdgeIt v2_v1=flowG.addEdge(v2, v1);

    42   EdgeIt v1_v3=flowG.addEdge(v1, v3);

    43   EdgeIt v3_v2=flowG.addEdge(v3, v2);

    44   EdgeIt v2_v4=flowG.addEdge(v2, v4);

    45   EdgeIt v4_v3=flowG.addEdge(v4, v3);

    46   EdgeIt v3_t=flowG.addEdge(v3, t);

    47   EdgeIt v4_t=flowG.addEdge(v4, t);

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

    51   cap.set(s_v1, 16);

    52   cap.set(s_v2, 13);

    53   cap.set(v1_v2, 10);

    54   cap.set(v2_v1, 4);

    55   cap.set(v1_v3, 12);

    56   cap.set(v3_v2, 9);

    57   cap.set(v2_v4, 14);

    58   cap.set(v4_v3, 7);

    59   cap.set(v3_t, 20);

    60   cap.set(v4_t, 4);

    68   /*

    69   //Ahuja könyv példája

    70   node_iterator s=flow_test.add_node();

    71   NodeIt v2=flow_test.add_node();

    72   NodeIt v3=flow_test.add_node();

    73   NodeIt v4=flow_test.add_node();

    74   NodeIt v5=flow_test.add_node();

    75   NodeIt t=flow_test.add_node();

    77   node_property_vector<list_graph, std::string> node_name(flow_test);

    78   node_name.put(s, "s");

    79   node_name.put(v2, "v2");

    80   node_name.put(v3, "v3");

    81   node_name.put(v4, "v4");

    82   node_name.put(v5, "v5");

    83   node_name.put(t, "t");

    86   edge_iterator s_v2=flow_test.add_edge(s, v2);

    87   edge_iterator s_v3=flow_test.add_edge(s, v3);

    89   edge_iterator v2_v4=flow_test.add_edge(v2, v4);

    90   edge_iterator v2_v5=flow_test.add_edge(v2, v5);

    92   edge_iterator v3_v5=flow_test.add_edge(v3, v5);

    94   edge_iterator v4_t=flow_test.add_edge(v4, t);

    95   edge_iterator v5_t=flow_test.add_edge(v5, t);

    97   //Kis modositas

    98   edge_iterator v2_s=flow_test.add_edge(v2, s);

   100   edge_property_vector<list_graph, int> cap(flow_test);

   101   cap.put(s_v2, 10);

   102   cap.put(s_v3, 10);

   103   cap.put(v2_v4, 5);

   104   cap.put(v2_v5, 8);

   105   cap.put(v3_v5, 5);

   106   cap.put(v4_t, 8);

   107   cap.put(v5_t, 8);

   109   //Kis modositas

   110   cap.put(v2_s, 100);

   112   //Kis modositas

   113   //edge_iterator t_s=flow_test.add_edge(t, s);

   114   //cap.put(t_s, 20);

   116   */

   120   /*Egyszerû példa

   121   NodeIt s=flow_test.add_node();

   122   NodeIt v1=flow_test.add_node();

   123   NodeIt v2=flow_test.add_node();

   124   NodeIt t=flow_test.add_node();

   126   node_property_vector<list_graph, std::string> node_name(flow_test);

   127   node_name.put(s, "s");

   128   node_name.put(v1, "v1");

   129   node_name.put(v2, "v2");

   130   node_name.put(t, "t");

   132   edge_iterator s_v1=flow_test.add_edge(s, v1);

   133   edge_iterator v1_v2=flow_test.add_edge(v1, v2);

   134   edge_iterator v2_t=flow_test.add_edge(v2, t);

   136   edge_property_vector<list_graph, int> cap(flow_test);

   138   cap.put(s_v1, 16);

   139   cap.put(v1_v2, 10);

   140   cap.put(v2_t, 4);

   141   */

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

   145   /*

   146   std::cout << "on directed graph graph" << std::endl; //<< flow_test;

   147   std::cout << "names and capacity values" << std::endl;

   148   for(EachNodeIt i=flow_test.first_node(); i.valid(); ++i) {

   149     std::cout << node_name.get(i) << ": ";

   150     std::cout << "out edges: ";

   151     for(out_edge_iterator j=flow_test.first_out_edge(i); j.valid(); ++j)

   152       std::cout << node_name.get(flow_test.tail(j)) << "-"<< cap.get(j) << "->" << node_name.get(flow_test.head(j)) << " ";

   153     std::cout << "in edges: ";

   154     for(in_edge_iterator j=flow_test.first_in_edge(i); j.valid(); ++j)

   155       std::cout << node_name.get(flow_test.tail(j)) << "-"<< cap.get(j) << "->" << node_name.get(flow_test.head(j)) << " ";

   156     std::cout << std::endl;

   157   }

   158   */

   160   //for(each_NodeIt i=flow_test.first_node(); i.valid(); ++i) {

   161   //  std::cout << i << " ";

   162   //}

   164   preflow_push<ListGraph, int> preflow_push_test(flowG, s, t, cap);

   165   cout << preflow_push_test.run()<<endl;

   167   //cap.put(v5_t, 9);

   168   //cout << preflow_push_test.run()<<endl;

   170   return 0;

   171 }

author	athos
	Mon, 16 Feb 2004 15:57:59 +0000
changeset 77	69b2d279c8f0
parent 36	7d539ea6ad26
child 105	a3c73e9b9b2e
permissions	-rw-r--r--