| author | alpar |
| Tue, 16 Dec 2003 17:52:52 +0000 | |
| changeset 7 | 0f527d1b9149 |
| child 8 | cd54905012bc |
| permissions | -rw-r--r-- |
1 #include <iostream>
2 #include <graph.h>
3 #include <bfs.h>
5 using namespace NEGRO;
6 using namespace std;
8 typedef Graph<int,int> TestGraph;
10 int gcd(int a,int b) {int c; while((c=a%b)) {a=b;b=c;} ; return b;}
12 int main()
13 {
14 TestGraph G;
16 TestGraph::NodeIterator tn,n2;
18 for(int i=1;i<=5000;i++)
19 {
20 *(tn=G.AddNode())=i;
21 if(i==2) n2=tn;
22 }
24 for(TestGraph::NodeIterator n(G);n.isValid();++n)
25 for(TestGraph::NodeIterator m(G);m.isValid();++m)
26 if(gcd(*n,*m)>1) G.AddEdge(n,m);
28 Bfs<default_bfs_T<TestGraph> > bfs;
30 bfs.SetG(G);
31 bfs.Init(n2);
32 bfs.Run();
34 for(TestGraph::NodeIterator n(G);n.isValid();++n)
35 cout << Get(bfs.tree_map,n).From() << "->" << Get(bfs.tree_map,n).To()
36 << '\n';
38 }