module Classic: sig .. end
Classic graphs
val divisors : int -> Sig_pack.S.t
divisors n builds the graph of divisors.
Vertices are integers from 2 to n. i is connected to j if
and only if i divides j.
Raises Invalid_argument is n < 2.
val de_bruijn : int -> Sig_pack.S.t
de_bruijn n builds the de Bruijn graph of order n.
Vertices are bit sequences of length n (encoded as their
interpretation as binary integers). The sequence xw is connected
to the sequence wy for any bits x and y and any bit sequence
w of length n-1.
Raises Invalid_argument is n < 1 or n > Sys.word_size-1.
val vertex_only : int -> Sig_pack.S.t
vertex_only n builds a graph with n vertices and no edge.
val full : ?self:bool -> int -> Sig_pack.S.t
full n builds a graph with n vertices and all possible edges.
The optional argument self indicates if loop edges should be added
(default value is true).