src/work/jacint/edmonds.cc
changeset 496 7c463a7635d4
equal deleted inserted replaced
-1:000000000000 0:e8437f92d72f
       
     1 #include <iostream>
       
     2 #include <vector>
       
     3 #include <string>
       
     4 
       
     5 #include <list_graph.h>
       
     6 #include <edmonds.h>
       
     7 
       
     8 using namespace hugo;
       
     9 
       
    10 int main (int, char*[])
       
    11 {
       
    12   typedef ListGraph::NodeIt NodeIt;
       
    13   typedef ListGraph::EdgeIt EdgeIt;
       
    14   typedef ListGraph::Node Node;
       
    15   typedef ListGraph::Edge Edge;
       
    16   typedef ListGraph::OutEdgeIt OutEdgeIt;
       
    17   typedef ListGraph::InEdgeIt InEdgeIt;
       
    18   
       
    19   ListGraph flow_test;
       
    20  
       
    21   /*    //Ahuja könyv példája, maxflowvalue=13*/
       
    22   Node s=flow_test.addNode();
       
    23   Node v1=flow_test.addNode();
       
    24   Node v2=flow_test.addNode();
       
    25   Node v3=flow_test.addNode();
       
    26   Node v4=flow_test.addNode();
       
    27   Node v5=flow_test.addNode();
       
    28   Node t=flow_test.addNode();
       
    29   
       
    30   ListGraph::NodeMap<std::string> Node_name(flow_test);
       
    31   Node_name.set(s, "s");
       
    32   Node_name.set(v1, "v1");
       
    33   Node_name.set(v2, "v2");
       
    34   Node_name.set(v3, "v3");
       
    35   Node_name.set(v4, "v4");
       
    36   Node_name.set(v5, "v5");
       
    37   Node_name.set(t, "t");
       
    38 
       
    39   Edge s_v1=flow_test.addEdge(s, v1);
       
    40   Edge s_v2=flow_test.addEdge(s, v2);
       
    41   Edge s_v3=flow_test.addEdge(s, v3);
       
    42   Edge v2_v4=flow_test.addEdge(v2, v4);
       
    43   Edge v2_v5=flow_test.addEdge(v2, v5);
       
    44   Edge v3_v5=flow_test.addEdge(v3, v5);
       
    45   Edge v4_t=flow_test.addEdge(v4, t);
       
    46   Edge v5_t=flow_test.addEdge(v5, t);
       
    47   Edge v2_s=flow_test.addEdge(v2, s);
       
    48   
       
    49    ListGraph::EdgeMap<int> cap(flow_test);  
       
    50   cap.set(s_v1, 0);
       
    51   cap.set(s_v2, 10);
       
    52   cap.set(s_v3, 10);
       
    53  cap.set(v2_v4, 5);
       
    54   cap.set(v2_v5, 8);
       
    55   cap.set(v3_v5, 5);
       
    56   cap.set(v4_t, 8);
       
    57   cap.set(v5_t, 8);
       
    58   cap.set(v2_s, 0);
       
    59   
       
    60 
       
    61   Edmonds<ListGraph> edmonds(flow_test);
       
    62   std::vector<Edge> matching(0);
       
    63   std::cout<<  edmonds.run(matching);
       
    64 
       
    65   
       
    66   /*  //Marci példája, maxflowvalue=23
       
    67     Node s=flow_test.addNode();
       
    68   Node v1=flow_test.addNode();
       
    69   Node v2=flow_test.addNode();
       
    70   Node v3=flow_test.addNode();
       
    71   Node v4=flow_test.addNode();
       
    72   Node t=flow_test.addNode();
       
    73   Node z=flow_test.addNode();
       
    74 
       
    75   
       
    76    ListGraph::NodeMap<std::string> Node_name(flow_test);
       
    77   Node_name.set(s, "s");
       
    78   Node_name.set(v1, "v1");
       
    79   Node_name.set(v2, "v2");
       
    80   Node_name.set(v3, "v3");
       
    81   Node_name.set(v4, "v4");
       
    82   Node_name.set(t, "t");
       
    83   Node_name.set(z, "z");
       
    84 
       
    85   Edge s_v1=flow_test.addEdge(s, v1);
       
    86   Edge s_v2=flow_test.addEdge(s, v2);
       
    87   Edge v1_v2=flow_test.addEdge(v1, v2);
       
    88   Edge v2_v1=flow_test.addEdge(v2, v1);
       
    89   Edge v1_v3=flow_test.addEdge(v1, v3);
       
    90   Edge v3_v2=flow_test.addEdge(v3, v2);
       
    91   Edge v2_v4=flow_test.addEdge(v2, v4);
       
    92   Edge v4_v3=flow_test.addEdge(v4, v3);
       
    93   Edge v3_t=flow_test.addEdge(v3, t);
       
    94   Edge v4_t=flow_test.addEdge(v4, t);
       
    95   Edge v3_v3=flow_test.addEdge(v3, v3);
       
    96   Edge s_z=flow_test.addEdge(s, z);
       
    97   //  Edge v2_s=flow_test.addEdge(v2, s);
       
    98   
       
    99 
       
   100 
       
   101    ListGraph::EdgeMap<int> cap(flow_test);  
       
   102   cap.set(s_v1, 16);
       
   103   cap.set(s_v2, 13);
       
   104   cap.set(v1_v2, 10);
       
   105   cap.set(v2_v1, 4);
       
   106   cap.set(v1_v3, 12);
       
   107   cap.set(v3_v2, 9);
       
   108   cap.set(v2_v4, 14);
       
   109   cap.set(v4_v3, 7);
       
   110   cap.set(v3_t, 20);
       
   111   cap.set(v4_t, 4);
       
   112   cap.set(v3_v3, 4);
       
   113   cap.set(s_z, 4);
       
   114   //  cap.set(v2_s, 0);
       
   115 
       
   116   */
       
   117 
       
   118   //pelda 3, maxflowvalue=4
       
   119   /*      Node s=flow_test.addNode();
       
   120   Node v1=flow_test.addNode();
       
   121   Node v2=flow_test.addNode();
       
   122   Node t=flow_test.addNode();
       
   123   Node w=flow_test.addNode();
       
   124   
       
   125   NodeMap<ListGraph, std::string> Node_name(flow_test);
       
   126   Node_name.set(s, "s");
       
   127   Node_name.set(v1, "v1");
       
   128   Node_name.set(v2, "v2");
       
   129   Node_name.set(t, "t");
       
   130   Node_name.set(w, "w");
       
   131 
       
   132   Edge s_v1=flow_test.addEdge(s, v1);
       
   133   Edge v1_v2=flow_test.addEdge(v1, v2);
       
   134   Edge v2_t=flow_test.addEdge(v2, t);
       
   135   Edge v1_v1=flow_test.addEdge(v1, v1);
       
   136   Edge s_w=flow_test.addEdge(s, w);
       
   137 
       
   138 
       
   139   EdgeMap<ListGraph, int> cap(flow_test); 
       
   140     
       
   141   cap.set(s_v1, 16);
       
   142   cap.set(v1_v2, 10);
       
   143   cap.set(v2_t, 4);
       
   144   cap.set(v1_v1, 3);
       
   145   cap.set(s_w, 5);
       
   146   */
       
   147   
       
   148 
       
   149 
       
   150   /*
       
   151   std::cout << "Testing reverse_bfs..." << std::endl;
       
   152   
       
   153   reverse_bfs<ListGraph> bfs_test(flow_test, t);
       
   154 
       
   155   bfs_test.run();
       
   156 
       
   157   for (EachNodeIt w=flow_test.first_Node(); w.valid(); ++w) {
       
   158     std::cout <<"The distance of " << w << " is " << bfs_test.dist(w) <<std::endl;
       
   159     }
       
   160 
       
   161   */
       
   162 
       
   163 
       
   164   /*
       
   165   std::cout << "Testing preflow_push_hl..." << std::endl;
       
   166   
       
   167   preflow_push_hl<ListGraph, int> preflow_push_test(flow_test, s, t, cap);
       
   168 
       
   169   preflow_push_test.run();
       
   170 
       
   171   std::cout << "Maximum flow value is: " << preflow_push_test.maxflow() << "."<<std::endl;
       
   172 
       
   173   std::cout<< "The flow on Edge s-v1 is "<< preflow_push_test.flowonEdge(s_v1) << "."<<std::endl;
       
   174 
       
   175    ListGraph::EdgeMap<int> flow=preflow_push_test.allflow();  
       
   176   for (EachEdgeIt e=flow_test.template first<EachEdgeIt>(); e.valid(); ++e) {
       
   177     std::cout <<"Flow on Edge " << flow_test.tail(e) <<"-" << flow_test.head(e)<< " is " <<flow.get(e) <<std::endl;
       
   178     }
       
   179 
       
   180   std::cout << "A minimum cut: " <<std::endl;  
       
   181    ListGraph::NodeMap<bool> mincut=preflow_push_test.mincut();
       
   182 
       
   183   for (EachNodeIt v=flow_test.template first<EachNodeIt>(); v.valid(); ++v) {
       
   184       if (mincut.get(v)) std::cout <<Node_name.get(v)<< " ";
       
   185     }
       
   186   
       
   187   std::cout<<"\n\n"<<std::endl;
       
   188 
       
   189 
       
   190 
       
   191 
       
   192   std::cout << "Testing preflow_push_max_flow..." << std::endl;
       
   193  
       
   194   preflow_push_max_flow<ListGraph, int> max_flow_test(flow_test, s, t, cap);
       
   195 
       
   196   max_flow_test.run();
       
   197 
       
   198   std::cout << "Maximum flow value is: " << max_flow_test.maxflow() << "."<< std::endl;
       
   199 
       
   200   std::cout << "A minimum cut: " <<std::endl;  
       
   201    ListGraph::NodeMap<bool> mincut2=max_flow_test.mincut();
       
   202 
       
   203   for (EachNodeIt v=flow_test.template first<EachNodeIt>(); v.valid(); ++v) {
       
   204     if (mincut2.get(v)) std::cout <<Node_name.get(v)<< " ";
       
   205   }
       
   206   
       
   207   std::cout << std::endl <<std::endl;
       
   208   */
       
   209 
       
   210   return 0;
       
   211 }
       
   212 
       
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