src/work/marci/graph_wrapper_time.cc
author deba
Mon, 04 Oct 2004 17:13:21 +0000
changeset 937 d4e911acef3d
parent 849 cc3867a7d380
permissions -rw-r--r--
Revert backport changes -r1230.
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// -*- c++ -*-
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// Use a DIMACS max flow file as follows:
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// graph_wrapper_time dimacs_max_flow_file
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#include <iostream>
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#include <fstream>
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#include <string>
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#include <vector>
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#include <lemon/invalid.h>
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#include <lemon/time_measure.h>
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#include <lemon/graph_wrapper.h>
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#include <lemon/preflow.h>
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#include <lemon/dimacs.h>
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#include <lemon/list_graph.h>
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using namespace lemon;
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using std::cout;
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using std::endl;
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template<typename Graph>
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void timeTest(std::string str, Graph& g) {
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  g.clear();
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  typename Graph::Node s;
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  typename Graph::Node t;
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  typedef typename Graph::template EdgeMap<int> FlowMap;
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  FlowMap cap(g);
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  FlowMap flow(g);
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  std::ifstream is(str.c_str());
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  readDimacs(is, g, cap, s, t);
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  Timer ts;
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  ts.reset();
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  typedef Preflow<Graph, int, FlowMap, FlowMap> MyPreflow;
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  MyPreflow max_flow(g, s, t, cap, flow);
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  max_flow.run(MyPreflow::NO_FLOW);
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  cout << "flow value: " << max_flow.flowValue() << endl;
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  cout << ts << endl;
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}
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int main(int, char** argv) {
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   std::string in=argv[1];
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  typedef ListGraph Graph; 
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  Graph g;
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  timeTest<Graph>(in, g);
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  typedef GraphWrapper<Graph> Graph1;
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  Graph1 g1(g);
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  timeTest<Graph1>(in, g1);
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  typedef GraphWrapper<Graph1> Graph2;
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  Graph2 g2(g1);
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  timeTest<Graph2>(in, g2);
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  typedef GraphWrapper<Graph2> Graph3;
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  Graph3 g3(g2);
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  timeTest<Graph3>(in, g3);
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  typedef GraphWrapper<Graph3> Graph4;
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  Graph4 g4(g3);
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  timeTest<Graph4>(in, g4);
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  typedef GraphWrapper<Graph4> Graph5;
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  Graph5 g5(g4);
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  timeTest<Graph5>(in, g5);
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  typedef GraphWrapper<Graph5> Graph6;
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  Graph6 g6(g5);
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  timeTest<Graph6>(in, g6);  
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  typedef GraphWrapper<Graph6> Graph7;
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  Graph7 g7(g6);
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  timeTest<Graph7>(in, g7);
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  return 0;
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}