Method TouchVertex

data-structures/graph/graph.go:66–70

(vertex VertexId)

}

func (g *graph) TouchVertex(vertex VertexId) {
	if _, ok := g.edges[vertex]; !ok {
		g.edges[vertex] = make(map[VertexId]int)
	}
}

func (g *graph) AddVertex(vertex VertexId) error {
	i, _ := g.edges[vertex]