marci@174: // -*- c++ -*-
marci@73: #include <iostream>
marci@73: #include <fstream>
marci@73: 
marci@174: #include <list_graph.h>
marci@415: #include <smart_graph.h>
marci@174: #include <dimacs.h>
marci@174: #include <edmonds_karp.h>
marci@73: #include <time_measure.h>
marci@303: //#include <graph_wrapper.h>
marci@311: #include <preflow.h>
marci@390: #include <preflow_res.h>
marci@333: #include <for_each_macros.h>
marci@266: 
alpar@105: using namespace hugo;
marci@73: 
marci@73: // Use a DIMACS max flow file as stdin.
marci@73: // read_dimacs_demo < dimacs_max_flow_file
marci@139: 
marci@174: 
marci@174: //   struct Ize {
marci@174: //   };
marci@139:   
marci@174: //   struct Mize {
marci@174: //     Ize bumm;
marci@174: //   };
marci@139: 
marci@174: //   template <typename B>
marci@174: //     class Huha {
marci@174: //     public:
marci@174: //       int u;
marci@174: //       B brr;
marci@174: //     };
marci@174: 
marci@139: 
marci@73: int main(int, char **) {
marci@73: 
marci@174:   typedef ListGraph MutableGraph;
marci@139: 
marci@415:   typedef SmartGraph Graph;
marci@415:   //  typedef ListGraph Graph;
marci@174:   typedef Graph::Node Node;
marci@174:   typedef Graph::EdgeIt EdgeIt;
marci@139: 
marci@139: 
marci@174: //   Mize mize[10];
marci@174: //   Mize bize[0];
marci@174: //   Mize zize;
marci@174: //   typedef Mize Tize[0];
marci@146: 
marci@174: //   std::cout << &zize << " " << sizeof(mize) << sizeof(Tize) << std::endl;
marci@174: //   std::cout << sizeof(bize) << std::endl;
marci@146: 
marci@146: 
marci@174: //   Huha<Tize> k;
marci@174: //   std::cout << sizeof(k) << std::endl;
marci@139: 
marci@174: 
marci@174: //   struct Bumm {
marci@174: //     //int a;
marci@174: //     bool b;
marci@174: //   };
marci@174: 
marci@174: //   std::cout << sizeof(Bumm) << std::endl;
marci@174: 
marci@174: 
marci@174:   Graph G;
marci@174:   Node s, t;
marci@174:   Graph::EdgeMap<int> cap(G);
marci@73:   readDimacsMaxFlow(std::cin, G, s, t, cap);
marci@333:   Timer ts;
marci@333:   Graph::EdgeMap<int> flow(G); //0 flow
marci@333:   Preflow<Graph, int, Graph::EdgeMap<int>, Graph::EdgeMap<int> > 
marci@465:     pre_flow_test(G, s, t, cap, flow/*, true*/);
marci@418:   Preflow<Graph, int, Graph::EdgeMap<int>, Graph::EdgeMap<int> > 
marci@465:     pre_flow_ize(G, s, t, cap, flow/*, false*/);
marci@465: //   PreflowRes<Graph, int, Graph::EdgeMap<int>, Graph::EdgeMap<int> > 
marci@465: //     pre_flow_res(G, s, t, cap, flow/*, true*/);
marci@333:   MaxFlow<Graph, int, Graph::EdgeMap<int>, Graph::EdgeMap<int> > 
marci@333:     max_flow_test(G, s, t, cap, flow);
marci@155: 
marci@311:   {
marci@311:     std::cout << "preflow ..." << std::endl;
marci@311:     ts.reset();
marci@333:     pre_flow_test.run();
marci@311:     std::cout << "elapsed time: " << ts << std::endl;
marci@333:     std::cout << "flow value: "<< pre_flow_test.flowValue() << std::endl;
marci@311:   }
marci@73: 
marci@133:   {
marci@418:     std::cout << "preflow ..." << std::endl;
marci@418:     FOR_EACH_LOC(Graph::EdgeIt, e, G) flow.set(e, 0);
marci@418:     ts.reset();
marci@465:     pre_flow_ize.preflow(Preflow<Graph, int, Graph::EdgeMap<int>, Graph::EdgeMap<int> >::GEN_FLOW);
marci@418:     std::cout << "elapsed time: " << ts << std::endl;
marci@418:     std::cout << "flow value: "<< pre_flow_ize.flowValue() << std::endl;
marci@418:   }
marci@418: 
marci@465: //   {
marci@465: //     std::cout << "wrapped preflow ..." << std::endl;
marci@465: //     FOR_EACH_LOC(Graph::EdgeIt, e, G) flow.set(e, 0);
marci@465: //     ts.reset();
marci@465: //     pre_flow_res.run();
marci@465: //     std::cout << "elapsed time: " << ts << std::endl;
marci@465: //     std::cout << "flow value: "<< pre_flow_test.flowValue() << std::endl;
marci@465: //   }
marci@376: 
marci@376:   {
marci@311:     std::cout << "physical blocking flow augmentation ..." << std::endl;
marci@333:     FOR_EACH_LOC(Graph::EdgeIt, e, G) flow.set(e, 0);
marci@174:     ts.reset();
marci@174:     int i=0;
marci@333:     while (max_flow_test.augmentOnBlockingFlow<MutableGraph>()) { ++i; }
marci@174:     std::cout << "elapsed time: " << ts << std::endl;
marci@174:     std::cout << "number of augmentation phases: " << i << std::endl; 
marci@174:     std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;
marci@168:   }
marci@168: 
marci@268:   {
marci@311:     std::cout << "faster physical blocking flow augmentation ..." << std::endl;
marci@333:     FOR_EACH_LOC(Graph::EdgeIt, e, G) flow.set(e, 0);
marci@268:     ts.reset();
marci@268:     int i=0;
marci@333:     while (max_flow_test.augmentOnBlockingFlow1<MutableGraph>()) { ++i; }
marci@268:     std::cout << "elapsed time: " << ts << std::endl;
marci@268:     std::cout << "number of augmentation phases: " << i << std::endl; 
marci@268:     std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;
marci@268:   }
marci@266: 
marci@269:   {
marci@311:     std::cout << "on-the-fly blocking flow augmentation ..." << std::endl;
marci@333:     FOR_EACH_LOC(Graph::EdgeIt, e, G) flow.set(e, 0);
marci@269:     ts.reset();
marci@269:     int i=0;
marci@333:     while (max_flow_test.augmentOnBlockingFlow2()) { ++i; }
marci@269:     std::cout << "elapsed time: " << ts << std::endl;
marci@269:     std::cout << "number of augmentation phases: " << i << std::endl; 
marci@269:     std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;
marci@269:   }
marci@266: 
marci@168:   {
marci@311:     std::cout << "on-the-fly shortest path augmentation ..." << std::endl;
marci@333:     FOR_EACH_LOC(Graph::EdgeIt, e, G) flow.set(e, 0);
marci@206:     ts.reset();
marci@174:     int i=0;
marci@333:     while (max_flow_test.augmentOnShortestPath()) { ++i; }
marci@174:     std::cout << "elapsed time: " << ts << std::endl;
marci@174:     std::cout << "number of augmentation phases: " << i << std::endl; 
marci@174:     std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;
marci@168:   }
marci@133: 
marci@73: 
marci@73:   return 0;
marci@73: }