COIN-OR::LEMON - Graph Library

Ignore:
Timestamp:
05/06/04 19:22:11 (17 years ago)
Author:
marci
Branch:
default
Phase:
public
Convert:
svn:c9d7d8f5-90d6-0310-b91f-818b3a526b0e/lemon/trunk@731
Message:

random graph, random bipartite graph in jacint/graph_gen.h

File:
1 edited

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  • src/work/marci/bipartite_matching_try_3.cc

    r555 r558  
    33#include <fstream>
    44#include <vector>
    5 #include <cstdlib>
    65
    76#include <list_graph.h>
     
    1413#include <hugo/maps.h>
    1514#include <max_flow.h>
     15#include <graph_gen.h>
    1616
    1717using namespace hugo;
     
    8080};
    8181
    82 /**
    83  * Inicializalja a veletlenszamgeneratort.
    84  * Figyelem, ez nem jo igazi random szamokhoz,
    85  * erre ne bizzad a titkaidat!
    86  */
    87 void random_init()
    88 {
    89         unsigned int seed = getpid();
    90         seed |= seed << 15;
    91         seed ^= time(0);
    92 
    93         srand(seed);
    94 }
    95 
    96 /**
    97  * Egy veletlen int-et ad vissza 0 es m-1 kozott.
    98  */
    99 int random(int m)
    100 {
    101   return int( double(m) * rand() / (RAND_MAX + 1.0) );
    102 }
    10382
    10483int main() {
     
    11392
    11493  Graph g;
    115 
    116   std::vector<Graph::Node> s_nodes;
    117   std::vector<Graph::Node> t_nodes;
    11894
    11995  int a;
     
    128104 
    129105  std::cout << "Generatig a random bipartite graph..." << std::endl;
    130   for (int i=0; i<a; ++i) s_nodes.push_back(g.addNode(false));
    131   for (int i=0; i<b; ++i) t_nodes.push_back(g.addNode(true));
    132 
    133106  random_init();
    134   for(int i=0; i<m; ++i) {
    135     g.addEdge(s_nodes[random(a)], t_nodes[random(b)]);
    136   }
     107  randomBipartiteGraph(g, a, b, m);
    137108
    138109//   std::cout << "Edges of the bipartite graph:" << std::endl;
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