Last change
on this file since 617:dc17013b0e52 was
8:cd54905012bc,
checked in by Alpar Juttner, 21 years ago
|
-New test: bfsdemo2.cc added
- Graph class has a NodeMap? and an EdgeMap? member class
- default_bfs_T uning the above Maps is added
- a (property)map must provide a member function SetG() to attach the map
to a graph
|
File size:
987 bytes
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Rev | Line | |
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[6] | 1 | #include <iostream> |
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| 2 | #include <graph.h> |
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| 3 | #include <bfs.h> |
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| 4 | |
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| 5 | using namespace NEGRO; |
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| 6 | using namespace std; |
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| 7 | |
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| 8 | typedef Graph<int,int> TestGraph; |
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| 9 | |
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| 10 | int gcd(int a,int b) {int c; while((c=a%b)) {a=b;b=c;} ; return b;} |
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| 11 | |
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| 12 | int main() |
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| 13 | { |
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| 14 | TestGraph G; |
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| 15 | |
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| 16 | TestGraph::NodeIterator tn,n2; |
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| 17 | |
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[8] | 18 | cout << "Create nodes\n"; |
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| 19 | |
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| 20 | for(int i=1;i<=500;i++) |
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[6] | 21 | { |
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| 22 | *(tn=G.AddNode())=i; |
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| 23 | if(i==2) n2=tn; |
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| 24 | } |
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| 25 | |
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[8] | 26 | cout << "Create Edges\n"; |
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| 27 | |
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[6] | 28 | for(TestGraph::NodeIterator n(G);n.isValid();++n) |
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[8] | 29 | for(TestGraph::NodeIterator m(G);m.isValid();++m) if(n!=m) |
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[6] | 30 | if(gcd(*n,*m)>1) G.AddEdge(n,m); |
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| 31 | |
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[8] | 32 | |
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| 33 | cout << "Run BFS\n"; |
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| 34 | |
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[6] | 35 | Bfs<default_bfs_T<TestGraph> > bfs; |
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| 36 | |
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| 37 | bfs.SetG(G); |
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| 38 | bfs.Init(n2); |
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| 39 | bfs.Run(); |
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| 40 | |
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| 41 | for(TestGraph::NodeIterator n(G);n.isValid();++n) |
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[8] | 42 | if((*n)!=2) |
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| 43 | cout << (Get(bfs.dist_map,n)) << '\n'; |
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[6] | 44 | |
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[8] | 45 | for(TestGraph::NodeIterator n(G);n.isValid();++n) |
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| 46 | if(Get(bfs.dist_map,n)) |
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| 47 | cout << *(Get(bfs.tree_map,n).From()) << "->" |
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| 48 | << *(Get(bfs.tree_map,n).To()) |
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| 49 | << '\n'; |
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[6] | 50 | } |
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