src/work/iterator_bfs_demo.cc
changeset 87 46705346edd4
child 99 f26897fb91fd
equal deleted inserted replaced
-1:000000000000 0:a837167deb96
       
     1 #include <iostream>
       
     2 #include <vector>
       
     3 #include <string>
       
     4 
       
     5 #include <list_graph.hh>
       
     6 #include <bfs_iterator.hh>
       
     7 #include <graph_wrapper.h>
       
     8 
       
     9 using namespace marci;
       
    10 
       
    11 int main (int, char*[])
       
    12 {
       
    13   typedef ListGraph::NodeIt NodeIt;
       
    14   typedef ListGraph::EdgeIt EdgeIt;
       
    15   typedef ListGraph::EachNodeIt EachNodeIt;
       
    16   typedef ListGraph::EachEdgeIt EachEdgeIt;
       
    17   typedef ListGraph::OutEdgeIt OutEdgeIt;
       
    18   typedef ListGraph::InEdgeIt InEdgeIt;
       
    19   typedef ListGraph::SymEdgeIt SymEdgeIt;
       
    20  
       
    21   ListGraph G;
       
    22 
       
    23   NodeIt s=G.addNode();
       
    24   NodeIt v1=G.addNode();
       
    25   NodeIt v2=G.addNode();
       
    26   NodeIt v3=G.addNode();
       
    27   NodeIt v4=G.addNode();
       
    28   NodeIt t=G.addNode();
       
    29   
       
    30   G.addEdge(s, v1);
       
    31   G.addEdge(s, v2);
       
    32   G.addEdge(v1, v2);
       
    33   G.addEdge(v2, v1);
       
    34   G.addEdge(v1, v3);
       
    35   G.addEdge(v3, v2);
       
    36   G.addEdge(v2, v4);
       
    37   G.addEdge(v4, v3);
       
    38   G.addEdge(v3, t);
       
    39   G.addEdge(v4, t);
       
    40 
       
    41   std::cout << "bfs and dfs demo on the directed graph" << std::endl;
       
    42   for(EachNodeIt i=G.first<EachNodeIt>(); i.valid(); ++i) { 
       
    43     std::cout << i << ": ";
       
    44     std::cout << "out edges: ";
       
    45     for(OutEdgeIt j=G.first<OutEdgeIt>(i); j.valid(); ++j) 
       
    46       std::cout << j << " ";
       
    47     std::cout << "in edges: ";
       
    48     for(InEdgeIt j=G.first<InEdgeIt>(i); j.valid(); ++j) 
       
    49       std::cout << j << " ";
       
    50     std::cout << std::endl;
       
    51   }
       
    52   
       
    53   {
       
    54     std::cout << "iterator bfs demo 4 ..." << std::endl;
       
    55     BfsIterator4< ListGraph, ListGraph::OutEdgeIt, ListGraph::NodeMap<bool> > bfs(G);
       
    56     bfs.pushAndSetReached(s);
       
    57     while (!bfs.finished()) {
       
    58       if (OutEdgeIt(bfs).valid()) {
       
    59 	std::cout << "OutEdgeIt: " << bfs; 
       
    60 	std::cout << " aNode: " << G.aNode(bfs); 
       
    61 	std::cout << " bNode: " << G.bNode(bfs) << " ";
       
    62       } else { 
       
    63 	std::cout << "OutEdgeIt: " << "invalid"; 
       
    64 	std::cout << " aNode: " << bfs.aNode(); 
       
    65 	std::cout << " bNode: " << "invalid" << " ";
       
    66       }
       
    67       if (bfs.isBNodeNewlyReached()) { 
       
    68 	std::cout << "bNodeIsNewlyReached ";
       
    69       } else { 
       
    70 	std::cout << "bNodeIsNotNewlyReached ";
       
    71       } 
       
    72       if (bfs.isANodeExamined()) { 
       
    73 	std::cout << "aNodeIsExamined ";
       
    74       } else { 
       
    75 	std::cout << "aNodeIsNotExamined ";
       
    76       } 
       
    77       std::cout<<std::endl;
       
    78       ++bfs;
       
    79     }
       
    80   }
       
    81 
       
    82   typedef ConstTrivGraphWrapper<ListGraph> CTGW;
       
    83   CTGW wG(G);
       
    84 
       
    85   std::cout << "bfs and dfs demo on the directed graph" << std::endl;
       
    86   for(CTGW::EachNodeIt i=wG.first<CTGW::EachNodeIt>(); i.valid(); ++i) { 
       
    87     std::cout << i << ": ";
       
    88     std::cout << "out edges: ";
       
    89     for(CTGW::OutEdgeIt j=wG.first<CTGW::OutEdgeIt>(i); j.valid(); ++j) 
       
    90       std::cout << j << " ";
       
    91     std::cout << "in edges: ";
       
    92     for(CTGW::InEdgeIt j=wG.first<CTGW::InEdgeIt>(i); j.valid(); ++j) 
       
    93       std::cout << j << " ";
       
    94     std::cout << std::endl;
       
    95   }
       
    96 
       
    97 
       
    98   {
       
    99     std::cout << "iterator bfs demo 5 ..." << std::endl;
       
   100     BfsIterator5< CTGW, CTGW::NodeMap<bool> > bfs(wG);
       
   101     bfs.pushAndSetReached(s);
       
   102     while (!bfs.finished()) {
       
   103       if (OutEdgeIt(bfs).valid()) {
       
   104 	std::cout << "OutEdgeIt: " << bfs; 
       
   105 	std::cout << " aNode: " << wG.aNode(bfs); 
       
   106 	std::cout << " bNode: " << wG.bNode(bfs) << " ";
       
   107       } else { 
       
   108 	std::cout << "OutEdgeIt: " << "invalid"; 
       
   109 	std::cout << " aNode: " << bfs.aNode(); 
       
   110 	std::cout << " bNode: " << "invalid" << " ";
       
   111       }
       
   112       if (bfs.isBNodeNewlyReached()) { 
       
   113 	std::cout << "bNodeIsNewlyReached ";
       
   114       } else { 
       
   115 	std::cout << "bNodeIsNotNewlyReached ";
       
   116       } 
       
   117       if (bfs.isANodeExamined()) { 
       
   118 	std::cout << "aNodeIsExamined ";
       
   119       } else { 
       
   120 	std::cout << "aNodeIsNotExamined ";
       
   121       } 
       
   122       std::cout<<std::endl;
       
   123       ++bfs;
       
   124     }
       
   125   }
       
   126 
       
   127 
       
   128   return 0;
       
   129 }