src/work/athos/dijkstra_demo.cc
author marci
Mon, 22 Nov 2004 09:12:33 +0000
changeset 1017 f588efc6d607
parent 921 818510fa3d99
permissions -rw-r--r--
Generalized flow by lp
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#include <iostream>
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#include <string>
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#include "list_graph.hh"
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//#include "marci_property_vector.hh"
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#include <dijkstra_at.h>
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using namespace lemon;
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int main (int, char*[])
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{
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  typedef ListGraph::NodeIt NodeIt;
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  typedef ListGraph::EdgeIt EdgeIt;
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  /*
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  typedef ListGraph::EachNodeIt EachNodeIt;
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  typedef ListGraph::EachEdgeIt EachEdgeIt;
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  typedef ListGraph::OutEdgeIt OutEdgeIt;
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  typedef ListGraph::InEdgeIt InEdgeIt;
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  typedef ListGraph::SymEdgeIt SymEdgeIt;
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  */
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  ListGraph flowG;
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  /*
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  //Marci példája
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  NodeIt s=flowG.addNode();
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  NodeIt v1=flowG.addNode();
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  NodeIt v2=flowG.addNode();
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  NodeIt v3=flowG.addNode();
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  NodeIt v4=flowG.addNode();
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  NodeIt t=flowG.addNode();
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  EdgeIt s_v1=flowG.addEdge(s, v1);
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  EdgeIt s_v2=flowG.addEdge(s, v2);
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  EdgeIt v1_v2=flowG.addEdge(v1, v2);
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  EdgeIt v2_v1=flowG.addEdge(v2, v1);
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  EdgeIt v1_v3=flowG.addEdge(v1, v3);
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  EdgeIt v3_v2=flowG.addEdge(v3, v2);
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  EdgeIt v2_v4=flowG.addEdge(v2, v4);
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  EdgeIt v4_v3=flowG.addEdge(v4, v3);
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  EdgeIt v3_t=flowG.addEdge(v3, t);
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  EdgeIt v4_t=flowG.addEdge(v4, t);
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  ListGraph::EdgeMap<int> cap(flowG);
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  cap.set(s_v1, 16);
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  cap.set(s_v2, 13);
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  cap.set(v1_v2, 10);
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  cap.set(v2_v1, 4);
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  cap.set(v1_v3, 12);
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  cap.set(v3_v2, 9);
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  cap.set(v2_v4, 14);
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  cap.set(v4_v3, 7);
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  cap.set(v3_t, 20);
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  cap.set(v4_t, 4);
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  */
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  //Ahuja könyv példája
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  NodeIt s=flowG.addNode();
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  NodeIt v2=flowG.addNode();
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  NodeIt v3=flowG.addNode();
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  NodeIt v4=flowG.addNode();
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  NodeIt v5=flowG.addNode();
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  NodeIt t=flowG.addNode();
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  EdgeIt s_v2=flowG.addEdge(s, v2);
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  EdgeIt s_v3=flowG.addEdge(s, v3);
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  EdgeIt v2_v4=flowG.addEdge(v2, v4);
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  EdgeIt v2_v5=flowG.addEdge(v2, v5);
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  EdgeIt v3_v5=flowG.addEdge(v3, v5);
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  EdgeIt v4_t=flowG.addEdge(v4, t);
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  EdgeIt v5_t=flowG.addEdge(v5, t);
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  //Kis modositas
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  //edge_iterator v2_s=flowG.add_edge(v2, s);
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  ListGraph::EdgeMap<int> cap(flowG);
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  cap.set(s_v2, 10);
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  cap.set(s_v3, 10);
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  cap.set(v2_v4, 5);
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  cap.set(v2_v5, 8);
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  cap.set(v3_v5, 5);
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  cap.set(v4_t, 8);
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  cap.set(v5_t, 8);
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  //Kis modositas
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  //cap.put(v2_s, 100);
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  /*Egyszerű példa
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  NodeIt s=flow_test.add_node();
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  NodeIt v1=flow_test.add_node();
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  NodeIt v2=flow_test.add_node();
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  NodeIt t=flow_test.add_node();
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  node_property_vector<list_graph, std::string> node_name(flow_test);
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  node_name.put(s, "s");
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  node_name.put(v1, "v1");
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  node_name.put(v2, "v2");
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  node_name.put(t, "t");
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  edge_iterator s_v1=flow_test.add_edge(s, v1);
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  edge_iterator v1_v2=flow_test.add_edge(v1, v2);
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  edge_iterator v2_t=flow_test.add_edge(v2, t);
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  edge_property_vector<list_graph, int> cap(flow_test); 
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  cap.put(s_v1, 16);
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  cap.put(v1_v2, 10);
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  cap.put(v2_t, 4);
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  */
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  std::cout << "preflow-push algorithm test..." << std::endl;
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  /*
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  std::cout << "on directed graph graph" << std::endl; //<< flow_test;
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  std::cout << "names and capacity values" << std::endl; 
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  for(EachNodeIt i=flow_test.first_node(); i.valid(); ++i) { 
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    std::cout << node_name.get(i) << ": ";
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    std::cout << "out edges: ";
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    for(out_edge_iterator j=flow_test.first_out_edge(i); j.valid(); ++j) 
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      std::cout << node_name.get(flow_test.source(j)) << "-"<< cap.get(j) << "->" << node_name.get(flow_test.target(j)) << " ";
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    std::cout << "in edges: ";
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    for(in_edge_iterator j=flow_test.first_in_edge(i); j.valid(); ++j) 
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      std::cout << node_name.get(flow_test.source(j)) << "-"<< cap.get(j) << "->" << node_name.get(flow_test.target(j)) << " ";
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    std::cout << std::endl;
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  }
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  */
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  //for(each_NodeIt i=flow_test.first_node(); i.valid(); ++i) { 
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  //  std::cout << i << " ";
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  //}
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  dijkstra_at<ListGraph, int> dijkstra_test(flowG, s, cap);
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  //cout << preflow_push_test.run()<<endl;
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  //cap.put(v5_t, 9);
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  //cout << preflow_push_test.run()<<endl;
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  return 0;
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}
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