// Creates a new random-order dfs structure.
func New(g *graph.Graph, src int) *Dfs {
d := new(Dfs)
d.graph = g
d.source = src
d.visited = make([]bool, g.Vertices())
d.parents = make([]int, g.Vertices())
d.order = make([]int, 0, g.Vertices())
d.pending = stack.New()
d.pending.Push(src)
d.builder = stack.New()
return d
}
// Creates a new random-order bfs structure.
func New(g *graph.Graph, src int) *Bfs {
d := new(Bfs)
d.graph = g
d.source = src
d.visited = make([]bool, g.Vertices())
d.visited[src] = true
d.parents = make([]int, g.Vertices())
d.order = make([]int, 1, g.Vertices())
d.order[0] = src
d.paths = make(map[int][]int)
d.pending = queue.New()
d.pending.Push(src)
d.builder = stack.New()
return d
}