// -*- c++ -*-

#include <iostream>

#include <fstream>

#include <list_graph.h>

#include <smart_graph.h>

#include <dimacs.h>

#include <edmonds_karp.h>

#include <time_measure.h>

#include <graph_wrapper.h>

using namespace hugo;

// Use a DIMACS max flow file as stdin.

// read_dimacs_demo < dimacs_max_flow_file

int main(int, char **) {

  typedef ListGraph MutableGraph;

  //typedef SmartGraph Graph;

  typedef ListGraph Graph;

  typedef Graph::Node Node;

  typedef Graph::EdgeIt EdgeIt;

  Graph G;

  Node s, t;

  Graph::EdgeMap<int> cap(G);

  readDimacsMaxFlow(std::cin, G, s, t, cap);

  {

    typedef TrivGraphWrapper<const Graph> GW;

    GW gw(G);

    typedef GW::EdgeMapWrapper< Graph::EdgeMap<int>, int > EMW;

    EMW cw(cap);

    Timer ts;

    GW::EdgeMap<int> flow(gw); 

    MaxFlow<GW, int, GW::EdgeMap<int>, EMW > max_flow_test(gw, s, t, flow, cw);

    int i;

    {

      std::cout << "edmonds karp demo (physical blocking flow augmentation)..." << std::endl;

      for (GW::EdgeIt e(gw); gw.valid(e); gw.next(e)) flow.set(e, 0);

      ts.reset();

      i=0;

      while (max_flow_test.augmentOnBlockingFlow<MutableGraph>()) { ++i; }

      std::cout << "elapsed time: " << ts << std::endl;

      std::cout << "number of augmentation phases: " << i << std::endl; 

      std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;

    }

    {

      std::cout << "edmonds karp demo (physical blocking flow 1 augmentation)..." << std::endl;

      for (GW::EdgeIt e(gw); gw.valid(e); gw.next(e)) flow.set(e, 0);

      ts.reset();

      i=0;

      while (max_flow_test.augmentOnBlockingFlow1<MutableGraph>()) { ++i; }

      std::cout << "elapsed time: " << ts << std::endl;

      std::cout << "number of augmentation phases: " << i << std::endl; 

      std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;

    }

    {

      std::cout << "edmonds karp demo (on-the-fly blocking flow augmentation)..." << std::endl;

      for (GW::EdgeIt e(gw); gw.valid(e); gw.next(e)) flow.set(e, 0);

      ts.reset();

      i=0;

      while (max_flow_test.augmentOnBlockingFlow2()) { ++i; }

      std::cout << "elapsed time: " << ts << std::endl;

      std::cout << "number of augmentation phases: " << i << std::endl; 

      std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;

    }

    {

      std::cout << "edmonds karp demo (on-the-fly shortest path augmentation)..." << std::endl;

      for (GW::EdgeIt e(gw); gw.valid(e); gw.next(e)) flow.set(e, 0);

      ts.reset();

      i=0;

      while (max_flow_test.augmentOnShortestPath()) { ++i; }

      std::cout << "elapsed time: " << ts << std::endl;

      std::cout << "number of augmentation phases: " << i << std::endl; 

      std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;

    }

  }

  {

    typedef TrivGraphWrapper<const Graph> GW1;

    GW1 gw1(G);

    typedef TrivGraphWrapper<const GW1> GW2;

    GW2 gw2(gw1);

    typedef TrivGraphWrapper<const GW2> GW3;

    GW3 gw3(gw2);

    typedef TrivGraphWrapper<const GW3> GW4;

    GW4 gw4(gw3);

    typedef TrivGraphWrapper<const GW4> GW5;

    GW5 gw5(gw4);

    typedef TrivGraphWrapper<const GW5> GW6;

    GW6 gw6(gw5);

    typedef TrivGraphWrapper<const GW6> GW7;

    GW7 gw7(gw6);

    typedef TrivGraphWrapper<const GW7> GW8;

    GW8 gw8(gw7);

    typedef TrivGraphWrapper<const GW8> GW9;

    GW9 gw9(gw8);

    typedef TrivGraphWrapper<const GW9> GW;

    GW gw(gw9);

    typedef GW::EdgeMapWrapper< Graph::EdgeMap<int>, int > EMW;

    EMW cw(cap);

    Timer ts;

    GW::EdgeMap<int> flow(gw); 

    MaxFlow<GW, int, GW::EdgeMap<int>, EMW > max_flow_test(gw, s, t, flow, cw);

    int i;

    {

      std::cout << "edmonds karp demo (physical blocking flow augmentation)..." << std::endl;

      for (GW::EdgeIt e(gw); gw.valid(e); gw.next(e)) flow.set(e, 0);

      ts.reset();

      i=0;

      while (max_flow_test.augmentOnBlockingFlow<MutableGraph>()) { ++i; }

      std::cout << "elapsed time: " << ts << std::endl;

      std::cout << "number of augmentation phases: " << i << std::endl; 

      std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;

    }

    {

      std::cout << "edmonds karp demo (physical blocking flow 1 augmentation)..." << std::endl;

      for (GW::EdgeIt e(gw); gw.valid(e); gw.next(e)) flow.set(e, 0);

      ts.reset();

      i=0;

      while (max_flow_test.augmentOnBlockingFlow1<MutableGraph>()) { ++i; }

      std::cout << "elapsed time: " << ts << std::endl;

      std::cout << "number of augmentation phases: " << i << std::endl; 

      std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;

    }

    {

      std::cout << "edmonds karp demo (on-the-fly blocking flow augmentation)..." << std::endl;

      for (GW::EdgeIt e(gw); gw.valid(e); gw.next(e)) flow.set(e, 0);

      ts.reset();

      i=0;

      while (max_flow_test.augmentOnBlockingFlow2()) { ++i; }

      std::cout << "elapsed time: " << ts << std::endl;

      std::cout << "number of augmentation phases: " << i << std::endl; 

      std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;

    }

    {

      std::cout << "edmonds karp demo (on-the-fly shortest path augmentation)..." << std::endl;

      for (GW::EdgeIt e(gw); gw.valid(e); gw.next(e)) flow.set(e, 0);

      ts.reset();

      i=0;

      while (max_flow_test.augmentOnShortestPath()) { ++i; }

      std::cout << "elapsed time: " << ts << std::endl;

      std::cout << "number of augmentation phases: " << i << std::endl; 

      std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;

    }

  }

  return 0;

}