src/work/athos/dijkstra_demo.cc
author alpar
Thu, 31 Mar 2005 13:30:27 +0000
changeset 1282 81e89e2b90d1
parent 921 818510fa3d99
permissions -rw-r--r--
length() returns int istead of size_t
     1 #include <iostream>
     2 #include <string>
     3 
     4 #include "list_graph.hh"
     5 //#include "marci_property_vector.hh"
     6 #include <dijkstra_at.h>
     7 
     8 using namespace lemon;
     9 
    10 
    11 int main (int, char*[])
    12 {
    13 
    14   
    15   typedef ListGraph::NodeIt NodeIt;
    16   typedef ListGraph::EdgeIt EdgeIt;
    17   /*
    18   typedef ListGraph::EachNodeIt EachNodeIt;
    19   typedef ListGraph::EachEdgeIt EachEdgeIt;
    20   typedef ListGraph::OutEdgeIt OutEdgeIt;
    21   typedef ListGraph::InEdgeIt InEdgeIt;
    22   typedef ListGraph::SymEdgeIt SymEdgeIt;
    23   */
    24   ListGraph flowG;
    25 
    26   /*
    27   //Marci példája
    28 
    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   //Ahuja könyv példája
    65 
    66   NodeIt s=flowG.addNode();
    67   NodeIt v2=flowG.addNode();
    68   NodeIt v3=flowG.addNode();
    69   NodeIt v4=flowG.addNode();
    70   NodeIt v5=flowG.addNode();
    71   NodeIt t=flowG.addNode();
    72 
    73   EdgeIt s_v2=flowG.addEdge(s, v2);
    74   EdgeIt s_v3=flowG.addEdge(s, v3);
    75   EdgeIt v2_v4=flowG.addEdge(v2, v4);
    76   EdgeIt v2_v5=flowG.addEdge(v2, v5);
    77   EdgeIt v3_v5=flowG.addEdge(v3, v5);
    78   EdgeIt v4_t=flowG.addEdge(v4, t);
    79   EdgeIt v5_t=flowG.addEdge(v5, t);
    80   
    81   //Kis modositas
    82   //edge_iterator v2_s=flowG.add_edge(v2, s);
    83 
    84   ListGraph::EdgeMap<int> cap(flowG);
    85 
    86   cap.set(s_v2, 10);
    87   cap.set(s_v3, 10);
    88   cap.set(v2_v4, 5);
    89   cap.set(v2_v5, 8);
    90   cap.set(v3_v5, 5);
    91   cap.set(v4_t, 8);
    92   cap.set(v5_t, 8);
    93 
    94   //Kis modositas
    95   //cap.put(v2_s, 100);
    96  
    97 
    98 
    99 
   100   /*Egyszerű példa
   101   NodeIt s=flow_test.add_node();
   102   NodeIt v1=flow_test.add_node();
   103   NodeIt v2=flow_test.add_node();
   104   NodeIt t=flow_test.add_node();
   105   
   106   node_property_vector<list_graph, std::string> node_name(flow_test);
   107   node_name.put(s, "s");
   108   node_name.put(v1, "v1");
   109   node_name.put(v2, "v2");
   110   node_name.put(t, "t");
   111 
   112   edge_iterator s_v1=flow_test.add_edge(s, v1);
   113   edge_iterator v1_v2=flow_test.add_edge(v1, v2);
   114   edge_iterator v2_t=flow_test.add_edge(v2, t);
   115 
   116   edge_property_vector<list_graph, int> cap(flow_test); 
   117     
   118   cap.put(s_v1, 16);
   119   cap.put(v1_v2, 10);
   120   cap.put(v2_t, 4);
   121   */
   122 
   123   std::cout << "preflow-push algorithm test..." << std::endl;
   124 
   125   /*
   126   std::cout << "on directed graph graph" << std::endl; //<< flow_test;
   127   std::cout << "names and capacity values" << std::endl; 
   128   for(EachNodeIt i=flow_test.first_node(); i.valid(); ++i) { 
   129     std::cout << node_name.get(i) << ": ";
   130     std::cout << "out edges: ";
   131     for(out_edge_iterator j=flow_test.first_out_edge(i); j.valid(); ++j) 
   132       std::cout << node_name.get(flow_test.source(j)) << "-"<< cap.get(j) << "->" << node_name.get(flow_test.target(j)) << " ";
   133     std::cout << "in edges: ";
   134     for(in_edge_iterator j=flow_test.first_in_edge(i); j.valid(); ++j) 
   135       std::cout << node_name.get(flow_test.source(j)) << "-"<< cap.get(j) << "->" << node_name.get(flow_test.target(j)) << " ";
   136     std::cout << std::endl;
   137   }
   138   */
   139   
   140   //for(each_NodeIt i=flow_test.first_node(); i.valid(); ++i) { 
   141   //  std::cout << i << " ";
   142   //}
   143   
   144   dijkstra_at<ListGraph, int> dijkstra_test(flowG, s, cap);
   145   //cout << preflow_push_test.run()<<endl;
   146 
   147   //cap.put(v5_t, 9);
   148   //cout << preflow_push_test.run()<<endl;
   149 
   150   return 0;
   151 }
   152 
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