Read graphs in dreadnaut format.
-o# Label vertices starting at # (default 0). This can be overridden in the input.
-n# Set the initial graph order to # (no default). This can be overridden in the input.
-g Use graph6 format (default for undirected graphs).
-z Use digraph6 format (default for directed graphs).
-s Use sparse6 format.
-h Write a header (according to -g, -z or -s).
-q Suppress auxiliary output.
Input consists of a sequence of dreadnaut commands restricted to:
n=# set number of vertices (no default) The = is optional.
$=# set label of first vertex (default 0) The = is optional.
d indicate graph will be directed
$$ return origin to initial value (see -o#)
".." and !..\n
comments to ignore
g specify graph to follow (as dreadnaut format) Can be omitted if first character of graph is a
digit or ';'.
q exit (optional)
nauty 2.8.9 September 2024 NAUTY-DRETOG(1)
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