function A = abc_adjacency ( )

%*****************************************************************************80
%
%% abc_adjacency() sets up the adjacency matrix associated with a network.
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    12 September 2024
%
%  Author:
%
%    John Burkardt
%
%  Output:
%
%    integer A(3,3): an adjacency matrix.
%
  A = [ ...
     0, 1, 0 ; ...
     0, 0, 1 ; ...
     1, 0, 0 ];

  return
end

