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marci@174
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// -*- c++ -*-
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marci@73
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#include <iostream>
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marci@73
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#include <fstream>
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marci@73
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marci@174
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#include <list_graph.h>
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marci@305
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#include <smart_graph.h>
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marci@174
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#include <dimacs.h>
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marci@174
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#include <edmonds_karp.h>
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marci@73
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#include <time_measure.h>
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marci@303
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//#include <graph_wrapper.h>
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marci@311
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#include <preflow.h>
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marci@266
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alpar@105
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using namespace hugo;
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marci@73
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14 |
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marci@73
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// Use a DIMACS max flow file as stdin.
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marci@73
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// read_dimacs_demo < dimacs_max_flow_file
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marci@139
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marci@174
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marci@174
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// struct Ize {
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marci@174
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// };
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marci@139
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marci@174
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// struct Mize {
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marci@174
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// Ize bumm;
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marci@174
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// };
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marci@139
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marci@174
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// template <typename B>
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marci@174
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// class Huha {
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marci@174
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// public:
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marci@174
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// int u;
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marci@174
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// B brr;
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marci@174
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// };
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marci@174
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marci@139
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marci@73
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int main(int, char **) {
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marci@73
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marci@174
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typedef ListGraph MutableGraph;
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marci@139
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marci@305
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typedef SmartGraph Graph;
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marci@305
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//typedef ListGraph Graph;
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marci@174
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typedef Graph::Node Node;
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marci@174
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typedef Graph::EdgeIt EdgeIt;
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marci@139
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marci@139
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marci@174
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// Mize mize[10];
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marci@174
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// Mize bize[0];
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marci@174
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// Mize zize;
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marci@174
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// typedef Mize Tize[0];
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marci@146
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marci@174
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// std::cout << &zize << " " << sizeof(mize) << sizeof(Tize) << std::endl;
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marci@174
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// std::cout << sizeof(bize) << std::endl;
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marci@146
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marci@146
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marci@174
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// Huha<Tize> k;
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marci@174
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// std::cout << sizeof(k) << std::endl;
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marci@139
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marci@174
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marci@174
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// struct Bumm {
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marci@174
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// //int a;
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marci@174
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// bool b;
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marci@174
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// };
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marci@174
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marci@174
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// std::cout << sizeof(Bumm) << std::endl;
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marci@174
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marci@174
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marci@174
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Graph G;
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marci@174
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Node s, t;
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marci@174
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Graph::EdgeMap<int> cap(G);
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marci@73
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readDimacsMaxFlow(std::cin, G, s, t, cap);
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marci@155
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marci@174
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// typedef TrivGraphWrapper<Graph> TGW;
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marci@174
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// TGW gw(G);
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marci@174
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// TGW::NodeIt sw;
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marci@174
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// gw./*getF*/first(sw);
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marci@174
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// std::cout << "p1:" << gw.nodeNum() << std::endl;
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marci@174
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// gw.erase(sw);
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marci@174
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// std::cout << "p2:" << gw.nodeNum() << std::endl;
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marci@174
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marci@174
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// typedef const Graph cLG;
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marci@174
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// typedef TrivGraphWrapper<const cLG> CTGW;
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marci@174
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// CTGW cgw(G);
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marci@174
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// CTGW::NodeIt csw;
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marci@174
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// cgw./*getF*/first(csw);
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marci@174
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// std::cout << "p1:" << cgw.nodeNum() << std::endl;
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marci@174
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// //cgw.erase(csw);
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marci@174
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// std::cout << "p2:" << cgw.nodeNum() << std::endl;
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marci@174
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marci@311
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{
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marci@311
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std::cout << "preflow ..." << std::endl;
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marci@311
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Graph::EdgeMap<int> flow(G); //0 flow
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marci@311
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marci@311
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Timer ts;
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marci@311
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ts.reset();
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marci@311
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marci@311
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Preflow<Graph, int, Graph::EdgeMap<int>, Graph::EdgeMap<int> >
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marci@311
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max_flow_test(G, s, t, cap, flow);
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marci@311
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max_flow_test.run();
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marci@311
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// int i=0;
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marci@311
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// while (max_flow_test.augmentOnBlockingFlow<MutableGraph>()) {
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marci@311
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// for(EdgeIt e=G.template first<EdgeIt>(); e.valid(); ++e) {
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marci@311
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// std::cout<<"("<<G.tail(e)<< "-"<<flow.get(e)<<"->"<<G.head(e)<<") ";
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marci@311
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// }
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marci@311
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// std::cout<<std::endl;
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marci@311
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// ++i;
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marci@311
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// }
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marci@311
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marci@311
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// std::cout << "maximum flow: "<< std::endl;
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marci@311
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// for(EdgeIt e=G.first<EdgeIt>(); e.valid(); ++e) {
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marci@311
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// std::cout<<"("<<G.tail(e)<< "-"<<flow.get(e)<<"->"<<G.head(e)<<") ";
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marci@311
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// }
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marci@311
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// std::cout<<std::endl;
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marci@311
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111 |
std::cout << "elapsed time: " << ts << std::endl;
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marci@311
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// std::cout << "number of augmentation phases: " << i << std::endl;
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marci@311
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std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;
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marci@311
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}
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marci@73
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marci@133
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{
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marci@311
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std::cout << "physical blocking flow augmentation ..." << std::endl;
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marci@303
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Graph::EdgeMap<int> flow(G); //0 flow
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marci@73
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119 |
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marci@174
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Timer ts;
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marci@174
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121 |
ts.reset();
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marci@174
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122 |
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marci@303
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123 |
MaxFlow<Graph, int, Graph::EdgeMap<int>, Graph::EdgeMap<int> >
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marci@303
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max_flow_test(G, s, t, flow, cap);
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marci@174
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125 |
int i=0;
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marci@174
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126 |
while (max_flow_test.augmentOnBlockingFlow<MutableGraph>()) {
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marci@174
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127 |
// for(EdgeIt e=G.template first<EdgeIt>(); e.valid(); ++e) {
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marci@168
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// std::cout<<"("<<G.tail(e)<< "-"<<flow.get(e)<<"->"<<G.head(e)<<") ";
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marci@168
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129 |
// }
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marci@168
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130 |
// std::cout<<std::endl;
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marci@174
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131 |
++i;
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marci@174
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132 |
}
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marci@168
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133 |
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marci@174
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134 |
// std::cout << "maximum flow: "<< std::endl;
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marci@174
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135 |
// for(EdgeIt e=G.first<EdgeIt>(); e.valid(); ++e) {
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marci@174
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// std::cout<<"("<<G.tail(e)<< "-"<<flow.get(e)<<"->"<<G.head(e)<<") ";
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marci@174
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137 |
// }
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marci@174
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138 |
// std::cout<<std::endl;
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marci@174
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139 |
std::cout << "elapsed time: " << ts << std::endl;
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marci@174
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140 |
std::cout << "number of augmentation phases: " << i << std::endl;
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marci@174
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std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;
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marci@168
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}
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marci@168
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marci@268
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{
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marci@311
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std::cout << "faster physical blocking flow augmentation ..." << std::endl;
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marci@303
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146 |
Graph::EdgeMap<int> flow(G); //0 flow
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marci@266
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147 |
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marci@268
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Timer ts;
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marci@268
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ts.reset();
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marci@266
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150 |
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marci@303
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151 |
MaxFlow<Graph, int, Graph::EdgeMap<int>, Graph::EdgeMap<int> >
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marci@303
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152 |
max_flow_test(G, s, t, flow, cap);
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marci@268
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153 |
int i=0;
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marci@268
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154 |
while (max_flow_test.augmentOnBlockingFlow1<MutableGraph>()) {
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marci@268
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155 |
// for(EdgeIt e=G.template first<EdgeIt>(); e.valid(); ++e) {
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marci@268
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156 |
// std::cout<<"("<<G.tail(e)<< "-"<<flow.get(e)<<"->"<<G.head(e)<<") ";
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marci@266
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157 |
// }
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marci@268
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158 |
// std::cout<<std::endl;
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marci@268
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159 |
++i;
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marci@268
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160 |
}
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marci@266
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marci@268
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162 |
// std::cout << "maximum flow: "<< std::endl;
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marci@268
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163 |
// for(EdgeIt e=G.first<EdgeIt>(); e.valid(); ++e) {
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marci@268
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164 |
// std::cout<<"("<<G.tail(e)<< "-"<<flow.get(e)<<"->"<<G.head(e)<<") ";
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marci@266
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165 |
// }
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marci@268
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166 |
// std::cout<<std::endl;
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marci@268
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167 |
std::cout << "elapsed time: " << ts << std::endl;
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marci@268
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168 |
std::cout << "number of augmentation phases: " << i << std::endl;
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marci@268
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169 |
std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;
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marci@268
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}
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marci@266
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marci@269
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{
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marci@311
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std::cout << "on-the-fly blocking flow augmentation ..." << std::endl;
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marci@303
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174 |
Graph::EdgeMap<int> flow(G); //0 flow
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marci@266
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175 |
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marci@269
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Timer ts;
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marci@269
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177 |
ts.reset();
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marci@266
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178 |
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marci@303
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179 |
MaxFlow<Graph, int, Graph::EdgeMap<int>, Graph::EdgeMap<int> >
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marci@303
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180 |
max_flow_test(G, s, t, flow, cap);
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marci@269
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181 |
int i=0;
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marci@269
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182 |
while (max_flow_test.augmentOnBlockingFlow2()) {
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marci@269
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183 |
// for(EdgeIt e=G.template first<EdgeIt>(); e.valid(); ++e) {
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marci@269
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184 |
// std::cout<<"("<<G.tail(e)<< "-"<<flow.get(e)<<"->"<<G.head(e)<<") ";
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marci@266
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185 |
// }
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marci@269
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186 |
// std::cout<<std::endl;
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marci@269
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187 |
++i;
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marci@269
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188 |
}
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marci@266
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189 |
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marci@269
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190 |
// std::cout << "maximum flow: "<< std::endl;
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marci@269
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191 |
// for(EdgeIt e=G.first<EdgeIt>(); e.valid(); ++e) {
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marci@269
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192 |
// std::cout<<"("<<G.tail(e)<< "-"<<flow.get(e)<<"->"<<G.head(e)<<") ";
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marci@266
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193 |
// }
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marci@269
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194 |
// std::cout<<std::endl;
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marci@269
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195 |
std::cout << "elapsed time: " << ts << std::endl;
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marci@269
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196 |
std::cout << "number of augmentation phases: " << i << std::endl;
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marci@269
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197 |
std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;
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marci@269
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198 |
}
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marci@266
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199 |
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marci@168
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200 |
{
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marci@311
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201 |
std::cout << "on-the-fly shortest path augmentation ..." << std::endl;
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marci@303
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202 |
Graph::EdgeMap<int> flow(G); //0 flow
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marci@206
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203 |
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marci@206
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204 |
Timer ts;
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marci@206
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205 |
ts.reset();
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marci@206
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206 |
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marci@303
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207 |
MaxFlow<Graph, int, Graph::EdgeMap<int>, Graph::EdgeMap<int> >
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marci@303
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208 |
max_flow_test(G, s, t, flow, cap);
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marci@174
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209 |
int i=0;
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marci@174
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210 |
while (max_flow_test.augmentOnShortestPath()) {
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marci@174
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211 |
// for(EdgeIt e=G.template first<EdgeIt>(); e.valid(); ++e) {
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marci@168
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212 |
// std::cout<<"("<<G.tail(e)<< "-"<<flow.get(e)<<"->"<<G.head(e)<<") ";
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marci@168
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213 |
// }
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marci@168
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214 |
// std::cout<<std::endl;
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marci@174
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215 |
++i;
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marci@174
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216 |
}
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marci@174
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217 |
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marci@174
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218 |
// std::cout << "maximum flow: "<< std::endl;
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marci@174
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219 |
// for(EdgeIt e=G.first<EdgeIt>(); e.valid(); ++e) {
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marci@174
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220 |
// std::cout<<"("<<G.tail(e)<< "-"<<flow.get(e)<<"->"<<G.head(e)<<") ";
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marci@174
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221 |
// }
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marci@174
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222 |
// std::cout<<std::endl;
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marci@174
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223 |
std::cout << "elapsed time: " << ts << std::endl;
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marci@174
|
224 |
std::cout << "number of augmentation phases: " << i << std::endl;
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marci@174
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225 |
std::cout << "flow value: "<< max_flow_test.flowValue() << std::endl;
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marci@168
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226 |
}
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marci@133
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227 |
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marci@73
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228 |
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marci@73
|
229 |
return 0;
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marci@73
|
230 |
}
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