function x = p01_sol ( n )
%*****************************************************************************80
%
%% P01_SOL returns the solution of problem 1.
%
% Licensing:
%
% This code is distributed under the MIT license.
%
% Modified:
%
% 10 October 2020
%
% Author:
%
% John Burkardt
%
% Input:
%
% integer N, the order of the system. N is primarily
% needed for problems where N may vary.
%
% Output:
%
% integer KNOW.
% -1, there is no solution to the system.
% 0, the solution of the system is not known.
% positive, KNOW solutions are known.
%
% real X(N), a solution value, if KNOW is positive.
%
know = 1;
x = ones ( n, 1 );
return
end