src/work/jacint/prim.cc
author jacint
Thu, 22 Apr 2004 15:56:05 +0000
changeset 374 0fc9cd9b854a
parent 220 7deda4d6a07a
child 921 818510fa3d99
permissions -rw-r--r--
(none)
jacint@173
     1
#include <iostream>
jacint@173
     2
#include <fstream>
jacint@173
     3
jacint@220
     4
#include <smart_graph.h>
jacint@211
     5
#include <list_graph.h>
jacint@211
     6
#include <dimacs.h>
jacint@173
     7
#include <prim.h>
jacint@173
     8
#include <time_measure.h>
jacint@173
     9
klao@258
    10
#include <bin_heap.h>
jacint@173
    11
#include <fib_heap.h>
jacint@173
    12
jacint@173
    13
using namespace hugo;
jacint@173
    14
jacint@173
    15
int main(int, char **) {
jacint@220
    16
  typedef SmartGraph::Node Node;
jacint@173
    17
jacint@220
    18
  SmartGraph G;
jacint@211
    19
  Node s, t;
jacint@220
    20
  SmartGraph::EdgeMap<int> cap(G);
jacint@173
    21
  readDimacsMaxFlow(std::cin, G, s, t, cap);
jacint@173
    22
jacint@173
    23
  std::cout << "prim demo ..." << std::endl;
jacint@173
    24
  
jacint@173
    25
  double pre_time=currTime();
jacint@220
    26
    Prim<SmartGraph, int, FibHeap<SmartGraph::Node, int, 
jacint@220
    27
    SmartGraph::NodeMap<int> > > prim_test(G, cap);
jacint@173
    28
    prim_test.run();
jacint@173
    29
  double post_time=currTime();
jacint@173
    30
    
jacint@173
    31
  std::cout << "running time with fib_heap: " 
jacint@173
    32
	    << post_time-pre_time << " sec"<< std::endl; 
jacint@173
    33
 
jacint@173
    34
  pre_time=currTime();
jacint@220
    35
  Prim<SmartGraph, int, BinHeap<SmartGraph::Node, int, 
jacint@220
    36
    SmartGraph::NodeMap<int> > > prim_test2(G, cap);
jacint@173
    37
  prim_test2.run();
jacint@173
    38
  post_time=currTime();
jacint@173
    39
  
jacint@173
    40
  std::cout << "running time with bin_heap: " 
jacint@173
    41
	    << post_time-pre_time << " sec"<< std::endl; 
jacint@173
    42
  
jacint@173
    43
  std::cout<<"A minimalis feszitofa sulya fib kupaccal: "<< prim_test.weight() <<std::endl;
jacint@173
    44
  std::cout<<"A minimalis feszitofa sulya bin kupaccal: "<< prim_test2.weight() <<std::endl;
jacint@173
    45
  if ( prim_test.weight() != prim_test2.weight() ) 
jacint@173
    46
    std::cout<<"Nem egyezik meg!"<<std::endl; 
jacint@173
    47
  else std::cout<<"Megegyezik."<<std::endl; 
jacint@173
    48
jacint@173
    49
  return 0;
jacint@173
    50
}