src/work/athos/pf_demo.cc
author athos
Mon, 05 Apr 2004 14:56:32 +0000
changeset 299 54e8905344ba
parent 105 a3c73e9b9b2e
child 331 f5461f8bc59b
permissions -rw-r--r--
Renaming Suurballe to minlengthpaths
     1 #include <iostream>
     2 #include <vector>
     3 #include <string>
     4 
     5 #include "list_graph.hh"
     6 #include "marci_graph_traits.hh"
     7 //#include "marci_property_vector.hh"
     8 #include "preflow_push.hh"
     9 
    10 using namespace hugo;
    11 
    12 
    13 int main (int, char*[])
    14 {
    15 
    16   
    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   */
    26   ListGraph flowG;
    27 
    28   /*
    29   //Marci példája
    30 
    31 
    32   NodeIt s=flowG.addNode();
    33   NodeIt v1=flowG.addNode();
    34   NodeIt v2=flowG.addNode();
    35   NodeIt v3=flowG.addNode();
    36   NodeIt v4=flowG.addNode();
    37   NodeIt t=flowG.addNode();
    38   
    39 
    40   EdgeIt s_v1=flowG.addEdge(s, v1);
    41   EdgeIt s_v2=flowG.addEdge(s, v2);
    42   EdgeIt v1_v2=flowG.addEdge(v1, v2);
    43   EdgeIt v2_v1=flowG.addEdge(v2, v1);
    44   EdgeIt v1_v3=flowG.addEdge(v1, v3);
    45   EdgeIt v3_v2=flowG.addEdge(v3, v2);
    46   EdgeIt v2_v4=flowG.addEdge(v2, v4);
    47   EdgeIt v4_v3=flowG.addEdge(v4, v3);
    48   EdgeIt v3_t=flowG.addEdge(v3, t);
    49   EdgeIt v4_t=flowG.addEdge(v4, t);
    50 
    51   ListGraph::EdgeMap<int> cap(flowG);
    52 
    53   cap.set(s_v1, 16);
    54   cap.set(s_v2, 13);
    55   cap.set(v1_v2, 10);
    56   cap.set(v2_v1, 4);
    57   cap.set(v1_v3, 12);
    58   cap.set(v3_v2, 9);
    59   cap.set(v2_v4, 14);
    60   cap.set(v4_v3, 7);
    61   cap.set(v3_t, 20);
    62   cap.set(v4_t, 4);
    63   */
    64 
    65 
    66   //Ahuja könyv példája
    67 
    68   NodeIt s=flowG.addNode();
    69   NodeIt v2=flowG.addNode();
    70   NodeIt v3=flowG.addNode();
    71   NodeIt v4=flowG.addNode();
    72   NodeIt v5=flowG.addNode();
    73   NodeIt t=flowG.addNode();
    74 
    75   EdgeIt s_v2=flowG.addEdge(s, v2);
    76   EdgeIt s_v3=flowG.addEdge(s, v3);
    77   EdgeIt v2_v4=flowG.addEdge(v2, v4);
    78   EdgeIt v2_v5=flowG.addEdge(v2, v5);
    79   EdgeIt v3_v5=flowG.addEdge(v3, v5);
    80   EdgeIt v4_t=flowG.addEdge(v4, t);
    81   EdgeIt v5_t=flowG.addEdge(v5, t);
    82   
    83   //Kis modositas
    84   //edge_iterator v2_s=flowG.add_edge(v2, s);
    85 
    86   ListGraph::EdgeMap<int> cap(flowG);
    87 
    88   cap.set(s_v2, 10);
    89   cap.set(s_v3, 10);
    90   cap.set(v2_v4, 5);
    91   cap.set(v2_v5, 8);
    92   cap.set(v3_v5, 5);
    93   cap.set(v4_t, 8);
    94   cap.set(v5_t, 8);
    95 
    96   //Kis modositas
    97   //cap.put(v2_s, 100);
    98  
    99 
   100 
   101 
   102   /*Egyszerű példa
   103   NodeIt s=flow_test.add_node();
   104   NodeIt v1=flow_test.add_node();
   105   NodeIt v2=flow_test.add_node();
   106   NodeIt t=flow_test.add_node();
   107   
   108   node_property_vector<list_graph, std::string> node_name(flow_test);
   109   node_name.put(s, "s");
   110   node_name.put(v1, "v1");
   111   node_name.put(v2, "v2");
   112   node_name.put(t, "t");
   113 
   114   edge_iterator s_v1=flow_test.add_edge(s, v1);
   115   edge_iterator v1_v2=flow_test.add_edge(v1, v2);
   116   edge_iterator v2_t=flow_test.add_edge(v2, t);
   117 
   118   edge_property_vector<list_graph, int> cap(flow_test); 
   119     
   120   cap.put(s_v1, 16);
   121   cap.put(v1_v2, 10);
   122   cap.put(v2_t, 4);
   123   */
   124 
   125   std::cout << "preflow-push algorithm test..." << std::endl;
   126 
   127   /*
   128   std::cout << "on directed graph graph" << std::endl; //<< flow_test;
   129   std::cout << "names and capacity values" << std::endl; 
   130   for(EachNodeIt i=flow_test.first_node(); i.valid(); ++i) { 
   131     std::cout << node_name.get(i) << ": ";
   132     std::cout << "out edges: ";
   133     for(out_edge_iterator j=flow_test.first_out_edge(i); j.valid(); ++j) 
   134       std::cout << node_name.get(flow_test.tail(j)) << "-"<< cap.get(j) << "->" << node_name.get(flow_test.head(j)) << " ";
   135     std::cout << "in edges: ";
   136     for(in_edge_iterator j=flow_test.first_in_edge(i); j.valid(); ++j) 
   137       std::cout << node_name.get(flow_test.tail(j)) << "-"<< cap.get(j) << "->" << node_name.get(flow_test.head(j)) << " ";
   138     std::cout << std::endl;
   139   }
   140   */
   141   
   142   //for(each_NodeIt i=flow_test.first_node(); i.valid(); ++i) { 
   143   //  std::cout << i << " ";
   144   //}
   145   
   146   preflow_push<ListGraph, int> preflow_push_test(flowG, s, t, cap);
   147   cout << preflow_push_test.run()<<endl;
   148 
   149   //cap.put(v5_t, 9);
   150   //cout << preflow_push_test.run()<<endl;
   151 
   152   return 0;
   153 }
   154 
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