Method AddVertex

data-structures/graph/graph.go:72–81

(vertex VertexId)

}

func (g *graph) AddVertex(vertex VertexId) error {
	i, _ := g.edges[vertex]
	if i != nil {
		return errors.New("Vertex already exists")
	}

	g.edges[vertex] = make(map[VertexId]int)

	return nil
}

func (g *graph) RemoveVertex(vertex VertexId) error {
	if !g.IsVertex(vertex) {