src/work/athos/pf_demo.cc
author marci
Wed, 18 Feb 2004 13:06:41 +0000
changeset 96 e2e18eb0fd10
parent 36 7d539ea6ad26
child 105 a3c73e9b9b2e
permissions -rw-r--r--
numerical results
     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 marci;
    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   
    27   //Marci példája
    28   ListGraph flowG;
    29 
    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();
    36   
    37 
    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);
    48 
    49   ListGraph::EdgeMap<int> cap(flowG);
    50 
    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);
    61 
    62 
    63 
    64 
    65 
    66 
    67 
    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();
    76   
    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");
    84 
    85   
    86   edge_iterator s_v2=flow_test.add_edge(s, v2);
    87   edge_iterator s_v3=flow_test.add_edge(s, v3);
    88   
    89   edge_iterator v2_v4=flow_test.add_edge(v2, v4);
    90   edge_iterator v2_v5=flow_test.add_edge(v2, v5);
    91 
    92   edge_iterator v3_v5=flow_test.add_edge(v3, v5);
    93 
    94   edge_iterator v4_t=flow_test.add_edge(v4, t);
    95   edge_iterator v5_t=flow_test.add_edge(v5, t);
    96   
    97   //Kis modositas
    98   edge_iterator v2_s=flow_test.add_edge(v2, s);
    99 
   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);
   108 
   109   //Kis modositas
   110   cap.put(v2_s, 100);
   111 
   112   //Kis modositas
   113   //edge_iterator t_s=flow_test.add_edge(t, s);
   114   //cap.put(t_s, 20);
   115 
   116   */
   117 
   118 
   119 
   120   /*Egyszerű 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();
   125   
   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");
   131 
   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);
   135 
   136   edge_property_vector<list_graph, int> cap(flow_test); 
   137     
   138   cap.put(s_v1, 16);
   139   cap.put(v1_v2, 10);
   140   cap.put(v2_t, 4);
   141   */
   142 
   143   std::cout << "preflow-push algorithm test..." << std::endl;
   144 
   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   */
   159   
   160   //for(each_NodeIt i=flow_test.first_node(); i.valid(); ++i) { 
   161   //  std::cout << i << " ";
   162   //}
   163   
   164   preflow_push<ListGraph, int> preflow_push_test(flowG, s, t, cap);
   165   cout << preflow_push_test.run()<<endl;
   166 
   167   //cap.put(v5_t, 9);
   168   //cout << preflow_push_test.run()<<endl;
   169 
   170   return 0;
   171 }
   172 
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