A bipartite graph template can be used as BipartiteGraph<ListGraph>.
authormarci
Fri, 30 Apr 2004 17:10:01 +0000
changeset 499767f3da8ce0e
parent 498 eb8bfa683d92
child 500 1a45623b4796
A bipartite graph template can be used as BipartiteGraph<ListGraph>.
src/work/marci/bipartite_graph_wrapper.h
src/work/marci/bipartite_matching_try_2.cc
src/work/marci/graph_wrapper.h
     1.1 --- a/src/work/marci/bipartite_graph_wrapper.h	Fri Apr 30 16:46:19 2004 +0000
     1.2 +++ b/src/work/marci/bipartite_graph_wrapper.h	Fri Apr 30 17:10:01 2004 +0000
     1.3 @@ -31,9 +31,9 @@
     1.4      SFalseTTrueMap;
     1.5      SFalseTTrueMap* s_false_t_true_map;
     1.6  
     1.7 -    BipartiteGraphWrapper() : GraphWrapper<Graph>(0) { }
     1.8 +    BipartiteGraphWrapper() : GraphWrapper<Graph>() { }
     1.9      void setSFalseTTrueMap(SFalseTTrueMap& _s_false_t_true_map) { 
    1.10 -      s_false_t_true_map=_s_false_t_true_map;
    1.11 +      s_false_t_true_map=&_s_false_t_true_map;
    1.12      }
    1.13  
    1.14    public:
    1.15 @@ -196,11 +196,11 @@
    1.16    public:
    1.17      typedef typename Parent::Node Node;
    1.18      typedef typename Parent::Edge Edge;
    1.19 -    BipartiteGraph() : BipartiteGraphWrapper<Graph>(0), 
    1.20 +    BipartiteGraph() : BipartiteGraphWrapper<Graph>(), 
    1.21  		       gr(), bipartite_map(gr), 
    1.22  		       s_false_t_true_map(bipartite_map) { 
    1.23        Parent::setGraph(gr); 
    1.24 -      Parent::setSFalseTTrueMap(bipartite_map);
    1.25 +      Parent::setSFalseTTrueMap(s_false_t_true_map);
    1.26      }
    1.27  
    1.28      /// the \c bool parameter which can be \c S_Class or \c T_Class shows 
     2.1 --- a/src/work/marci/bipartite_matching_try_2.cc	Fri Apr 30 16:46:19 2004 +0000
     2.2 +++ b/src/work/marci/bipartite_matching_try_2.cc	Fri Apr 30 17:10:01 2004 +0000
     2.3 @@ -10,7 +10,6 @@
     2.4  #include <time_measure.h>
     2.5  #include <for_each_macros.h>
     2.6  #include <bfs_iterator.h>
     2.7 -#include <graph_wrapper.h>
     2.8  #include <bipartite_graph_wrapper.h>
     2.9  #include <maps.h>
    2.10  #include <max_flow.h>
    2.11 @@ -40,7 +39,9 @@
    2.12  using namespace hugo;
    2.13  
    2.14  int main() {
    2.15 -  typedef UndirListGraph Graph; 
    2.16 +  //typedef UndirListGraph Graph; 
    2.17 +  typedef BipartiteGraph<ListGraph> Graph;
    2.18 +  
    2.19    typedef Graph::Node Node;
    2.20    typedef Graph::NodeIt NodeIt;
    2.21    typedef Graph::Edge Edge;
    2.22 @@ -63,108 +64,30 @@
    2.23    std::cin >> m; 
    2.24    
    2.25  
    2.26 -  for (int i=0; i<a; ++i) s_nodes.push_back(g.addNode());
    2.27 -  for (int i=0; i<b; ++i) t_nodes.push_back(g.addNode());
    2.28 +  for (int i=0; i<a; ++i) s_nodes.push_back(g.addNode(false));
    2.29 +  for (int i=0; i<b; ++i) t_nodes.push_back(g.addNode(true));
    2.30  
    2.31    random_init();
    2.32    for(int i=0; i<m; ++i) {
    2.33      g.addEdge(s_nodes[random(a)], t_nodes[random(b)]);
    2.34    }
    2.35  
    2.36 -  Graph::NodeMap<int> ref_map(g, -1);
    2.37 +  std::cout << "Edges of the bipartite graph:" << std::endl;
    2.38 +  FOR_EACH_LOC(EdgeIt, e, g) std::cout << e << " ";
    2.39 +  std::cout << std::endl;
    2.40  
    2.41 -  IterableBoolMap< Graph::NodeMap<int> > bipartite_map(ref_map);
    2.42 -  for (int i=0; i<a; ++i) bipartite_map.insert(s_nodes[i], false);
    2.43 -  for (int i=0; i<b; ++i) bipartite_map.insert(t_nodes[i], true);
    2.44 +  typedef stGraphWrapper<Graph> stGW;
    2.45 +  stGW stgw(g);
    2.46 +  ConstMap<stGW::Edge, int> const1map(1);
    2.47  
    2.48 -//   Graph::Node u;
    2.49 -//   std::cout << "These nodes will be in S:\n";
    2.50 -//   //FIXME azert kellene ++, es invalid vizsgalat u-bol, hogy ezt le lehessen 
    2.51 -//   //irni 1etlen FOR_EACH-csel.
    2.52 -//   for (bipartite_map.first(u, false); g.valid(u); bipartite_map.next(u)) 
    2.53 -//     std::cout << u << " ";
    2.54 -//   std::cout << "\n";
    2.55 -//   std::cout << "These nodes will be in T:\n";
    2.56 -//   for (bipartite_map.first(u, true); g.valid(u); bipartite_map.next(u)) 
    2.57 -//     std::cout << u << " ";
    2.58 -//   std::cout << "\n";
    2.59  
    2.60 -  typedef BipartiteGraphWrapper<Graph> BGW;
    2.61 -  BGW bgw(g, bipartite_map);
    2.62 -
    2.63 -//   std::cout << "Nodes by NodeIt:\n";
    2.64 -//   FOR_EACH_LOC(BGW::NodeIt, n, bgw) {
    2.65 -//     std::cout << n << " ";
    2.66 -//   }
    2.67 -//   std::cout << "\n";
    2.68 -//   std::cout << "Nodes in S by ClassNodeIt:\n";
    2.69 -//   FOR_EACH_INC_LOC(BGW::ClassNodeIt, n, bgw, bgw.S_CLASS) {
    2.70 -//     std::cout << n << " ";
    2.71 -//   }
    2.72 -//   std::cout << "\n";
    2.73 -//   std::cout << "Nodes in T by ClassNodeIt:\n";
    2.74 -//   FOR_EACH_INC_LOC(BGW::ClassNodeIt, n, bgw, bgw.T_CLASS) {
    2.75 -//     std::cout << n << " ";
    2.76 -//   }
    2.77 -//   std::cout << "\n";
    2.78 -//   std::cout << "Edges of the bipartite graph:\n";
    2.79 -//   FOR_EACH_LOC(BGW::EdgeIt, e, bgw) {
    2.80 -//     std::cout << bgw.tail(e) << "->" << bgw.head(e) << std::endl;
    2.81 -//   }
    2.82 -
    2.83 -//  BGW::NodeMap<int> dbyj(bgw);
    2.84 -//  BGW::EdgeMap<int> dbyxcj(bgw);
    2.85 -
    2.86 -  typedef stGraphWrapper<BGW> stGW;
    2.87 -  stGW stgw(bgw);
    2.88 -  ConstMap<stGW::Edge, int> const1map(1);
    2.89 -//  stGW::NodeMap<int> ize(stgw);
    2.90 -
    2.91 -//   BfsIterator< BGW, BGW::NodeMap<bool> > bfs(bgw);
    2.92 -//   Graph::NodeIt si;
    2.93 -//   Graph::Node s; 
    2.94 -//   s=g.first(si);
    2.95 -//   bfs.pushAndSetReached(BGW::Node(s));
    2.96 -//   while (!bfs.finished()) { ++bfs; }
    2.97 -
    2.98 -//   FOR_EACH_LOC(stGW::NodeIt, n, stgw) { 
    2.99 -//     std::cout << "out-edges of " << n << ":\n"; 
   2.100 -//     FOR_EACH_INC_LOC(stGW::OutEdgeIt, e, stgw, n) { 
   2.101 -//       std::cout << " " << e << "\n";
   2.102 -//       std::cout << " aNode: " << stgw.aNode(e) << "\n";
   2.103 -//       std::cout << " bNode: " << stgw.bNode(e) << "\n";      
   2.104 -//     }
   2.105 -//     std::cout << "in-edges of " << n << ":\n"; 
   2.106 -//     FOR_EACH_INC_LOC(stGW::InEdgeIt, e, stgw, n) { 
   2.107 -//       std::cout << " " << e << "\n";
   2.108 -//       std::cout << " aNode: " << stgw.aNode(e) << "\n";
   2.109 -//       std::cout << " bNode: " << stgw.bNode(e) << "\n";     
   2.110 -//     }
   2.111 -//   }
   2.112 -//   std::cout << "Edges of the stGraphWrapper:\n"; 
   2.113 -//   FOR_EACH_LOC(stGW::EdgeIt, n, stgw) { 
   2.114 -//     std::cout << " " << n << "\n";
   2.115 -//   }
   2.116 -
   2.117 -//   stGW::NodeMap<bool> b(stgw);
   2.118 -//   FOR_EACH_LOC(stGW::NodeIt, n, stgw) { 
   2.119 -//     std::cout << n << ": " << b[n] <<"\n";
   2.120 -//   }
   2.121 -
   2.122 -//   std::cout << "Bfs from s: \n";
   2.123 -//   BfsIterator< stGW, stGW::NodeMap<bool> > bfs_stgw(stgw);
   2.124 -//   bfs_stgw.pushAndSetReached(stgw.S_NODE);
   2.125 -//   while (!bfs_stgw.finished()) { 
   2.126 -//     std::cout << " " << stGW::OutEdgeIt(bfs_stgw) << "\n";
   2.127 -//     ++bfs_stgw; 
   2.128 -//   }
   2.129  
   2.130  
   2.131    Timer ts;
   2.132    ts.reset();
   2.133 -  stGW::EdgeMap<int> max_flow(stgw);
   2.134 +  stGW::EdgeMap<int> flow(stgw);
   2.135    MaxFlow<stGW, int, ConstMap<stGW::Edge, int>, stGW::EdgeMap<int> > 
   2.136 -    max_flow_test(stgw, stgw.S_NODE, stgw.T_NODE, const1map, max_flow);
   2.137 +    max_flow_test(stgw, stgw.S_NODE, stgw.T_NODE, const1map, flow);
   2.138  //  while (max_flow_test.augmentOnShortestPath()) { }
   2.139    typedef ListGraph MutableGraph;
   2.140  //  while (max_flow_test.augmentOnBlockingFlow1<MutableGraph>()) {
   2.141 @@ -173,10 +96,10 @@
   2.142    }
   2.143    std::cout << "max flow value: " << max_flow_test.flowValue() << std::endl;
   2.144    std::cout << "elapsed time: " << ts << std::endl;
   2.145 -//   FOR_EACH_LOC(stGW::EdgeIt, e, stgw) { 
   2.146 -//     std::cout << e << ": " << max_flow[e] << "\n"; 
   2.147 -//   }
   2.148 -//   std::cout << "\n";
   2.149 +  FOR_EACH_LOC(stGW::EdgeIt, e, stgw) { 
   2.150 +    if (flow[e]) std::cout << e << std::endl; 
   2.151 +  }
   2.152 +  std::cout << std::endl;
   2.153  
   2.154    ts.reset();
   2.155    stGW::EdgeMap<int> pre_flow(stgw);
     3.1 --- a/src/work/marci/graph_wrapper.h	Fri Apr 30 16:46:19 2004 +0000
     3.2 +++ b/src/work/marci/graph_wrapper.h	Fri Apr 30 17:10:01 2004 +0000
     3.3 @@ -11,7 +11,7 @@
     3.4  ///\author Marton Makai
     3.5  
     3.6  #include <invalid.h>
     3.7 -#include <iter_map.h>
     3.8 +//#include <iter_map.h>
     3.9  
    3.10  namespace hugo {
    3.11