src/work/jacint/dijkstra.cc
author alpar
Fri, 23 Apr 2004 13:31:34 +0000
changeset 382 f177fc597abd
parent 258 94bafec4f56f
permissions -rw-r--r--
(none)
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#include <iostream>
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#include <fstream>
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#include <list_graph.hh>
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#include <dimacs.hh>
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#include <dijkstra.h>
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#include <time_measure.h>
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#include <bin_heap.hh>
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using namespace hugo;
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int main(int, char **) {
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  typedef ListGraph Graph;
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  typedef Graph::Node Node;
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  typedef Graph::EdgeIt EdgeIt;
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  Graph G;
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  Node s, t;
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  Graph::EdgeMap<int> cap(G);
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  readDimacsMaxFlow(std::cin, G, s, t, cap);
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  Timer ts;
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  std::cout << "Testing dijkstra.h with Fibonacci-heap 
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implementation fib_heap.h ..." << std::endl;
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  Dijkstra<Graph, int
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      //      , BinHeap<ListGraph::NodeIt, int, ListGraph::NodeMap<int> > 
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> dijkstra_test(G, s, cap);
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   ts.reset();
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    dijkstra_test.run();
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    std::cout << "elapsed time: " << ts << std::endl;
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  double post_time=currTime();
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  std::cout << "running time: " << post_time-pre_time << " sec"<< std::endl; 
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  EachEdgeIt e;
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  int hiba=0;
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  int edge=0;
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  for ( G.getFirst(e) ; G.valid(e); G.next(e) ) {
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    NodeIt u=G.tail(e);
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    NodeIt v=G.head(e);
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    ++edge;
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    if ( dijkstra_test.dist(v) - dijkstra_test.dist(u) > cap.get(e) ) {
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      std::cout<<"Hiba: "<<edge<<": "<<dijkstra_test.dist(v) - dijkstra_test.dist(u) - cap.get(e)<<std::endl;
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      ++hiba;
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    }
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  }
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  std::cout << "Osszhibas el: " << hiba << " osszel: " << G.edgeNum() << std::endl;
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  return 0;
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}