P=[3 6 7 5;8 5 2 9;8 3 9 7];
alpha=0;
[optimValue, optimPath]=myPlateauPass(P, alpha);
fprintf('optimValue=%g\n', optimValue);
fprintf('optimPath=%s\n', mat2str(optimPath));
% Plotting
[m, n]=size(P);
imagesc(1:n, 1:m, P); axis image; shading flat; colorbar
title('Plateau');
for i=1:n
	line(i, optimPath(i), 'color', 'k', 'marker', '.');
end