% Make links of all the pairs of nodes. % Some heuristics might be added latter.function L = makeL(coord)    N = size(coord,1);    L = zeros(N*(N-1),2);        for i=1:N*(N-1)        si = floor((i-1)/(N-1))+1;        di = mod(i-1,N-1)+1;        if di >= si            di = di+1;        end        L(i,:) = [si,di];    end