53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
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class directed_multigraph
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{
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public:
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unsigned n_vertices;
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basedvector<unsigned, 1> edge_from,
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edge_to;
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public:
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directed_multigraph () : n_vertices(0) { }
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directed_multigraph (unsigned n_vertices_,
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basedvector<unsigned, 1> edge_from_,
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basedvector<unsigned, 1> edge_to_)
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: n_vertices(n_vertices_),
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edge_from(edge_from_),
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edge_to(edge_to_)
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{
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}
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directed_multigraph (const directed_multigraph &g)
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: n_vertices(g.n_vertices),
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edge_from(g.edge_from),
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edge_to(g.edge_to)
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{ }
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directed_multigraph (copy, const directed_multigraph &g)
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: n_vertices(g.n_vertices),
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edge_from(COPY, g.edge_from),
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edge_to(COPY, g.edge_to)
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{
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}
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directed_multigraph &operator = (const directed_multigraph &g)
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{
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n_vertices = g.n_vertices;
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edge_from = g.edge_from;
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edge_to = g.edge_to;
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return *this;
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}
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unsigned num_edges () const { return edge_from.size (); }
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unsigned num_components () const;
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// the component containing the vertex v
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directed_multigraph component (unsigned v,
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basedvector<unsigned, 1> &edge_inj,
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basedvector<unsigned, 1> &virtex_inj) const;
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basedvector<set<unsigned>, 1> spanning_trees () const;
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void display_self () const;
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};
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