lemon-0.x: src/work/athos/pf_demo.cc@89d2ce014e12

     1 #include <iostream>

     2 #include <vector>

     3 #include <string>

     5 #include "marci_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 {

    15   typedef graph_traits<list_graph>::node_iterator node_iterator;

    16   typedef graph_traits<list_graph>::edge_iterator edge_iterator;

    17   typedef graph_traits<list_graph>::each_node_iterator each_node_iterator;

    18   typedef graph_traits<list_graph>::each_edge_iterator each_edge_iterator;

    19   typedef graph_traits<list_graph>::out_edge_iterator out_edge_iterator;

    20   typedef graph_traits<list_graph>::in_edge_iterator in_edge_iterator;

    21   typedef graph_traits<list_graph>::sym_edge_iterator sym_edge_iterator;

    23   list_graph flow_test;

    26   //Ahuja könyv példája

    27   node_iterator s=flow_test.add_node();

    28   node_iterator v2=flow_test.add_node();

    29   node_iterator v3=flow_test.add_node();

    30   node_iterator v4=flow_test.add_node();

    31   node_iterator v5=flow_test.add_node();

    32   node_iterator t=flow_test.add_node();

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    54   //Kis modositas

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

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

    58   cap.put(s_v2, 10);

    59   cap.put(s_v3, 10);

    60   cap.put(v2_v4, 5);

    61   cap.put(v2_v5, 8);

    62   cap.put(v3_v5, 5);

    63   cap.put(v4_t, 8);

    64   cap.put(v5_t, 8);

    66   //Kis modositas

    67   cap.put(v2_s, 100);

    69   //Kis modositas

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

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

    74   /*

    75   //Marci példája

    76   node_iterator s=flow_test.add_node();

    77   node_iterator v1=flow_test.add_node();

    78   node_iterator v2=flow_test.add_node();

    79   node_iterator v3=flow_test.add_node();

    80   node_iterator v4=flow_test.add_node();

    81   node_iterator t=flow_test.add_node();

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

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

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

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

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

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

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

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

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

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

    94   edge_iterator v2_v1=flow_test.add_edge(v2, v1);

    95   edge_iterator v1_v3=flow_test.add_edge(v1, v3);

    96   edge_iterator v3_v2=flow_test.add_edge(v3, v2);

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

    98   edge_iterator v4_v3=flow_test.add_edge(v4, v3);

    99   edge_iterator v3_t=flow_test.add_edge(v3, t);

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

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

   103   cap.put(s_v1, 16);

   104   cap.put(s_v2, 13);

   105   cap.put(v1_v2, 10);

   106   cap.put(v2_v1, 4);

   107   cap.put(v1_v3, 12);

   108   cap.put(v3_v2, 9);

   109   cap.put(v2_v4, 14);

   110   cap.put(v4_v3, 7);

   111   cap.put(v3_t, 20);

   112   cap.put(v4_t, 4);

   113   */

   114   /*Egyszerû példa

   115   node_iterator s=flow_test.add_node();

   116   node_iterator v1=flow_test.add_node();

   117   node_iterator v2=flow_test.add_node();

   118   node_iterator t=flow_test.add_node();

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

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

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

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

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

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

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

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

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

   132   cap.put(s_v1, 16);

   133   cap.put(v1_v2, 10);

   134   cap.put(v2_t, 4);

   135   */

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

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

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

   140   for(each_node_iterator i=flow_test.first_node(); i.valid(); ++i) {

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

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

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

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

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

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

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

   148     std::cout << std::endl;

   149   }

   152   //for(each_node_iterator i=flow_test.first_node(); i.valid(); ++i) {

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

   154   //}

   156   preflow_push<list_graph, int> preflow_push_test(flow_test, s, t, cap);

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

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

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

   162   return 0;

   163 }

author	marci
	Wed, 04 Feb 2004 12:59:17 +0000
changeset 60	89d2ce014e12
child 77	69b2d279c8f0
permissions	-rw-r--r--