MATLAB: General code for sorting inside cell

general code for sorting inside cell

ref=69;
A={[1,2,3,12],[19,34,37,15,33,35,36],[19,20,21,22,23,5,8,11,13,15,17],[37,38,65,40,42,49,66],[5,11,3,12],[69,19,21,22,23],[69,70,75]};
amount=[];
ref_include_index = cellfun(@(v)any(ismember(v,ref)),A); 
ref_include_array = A(ref_include_index); % find array that include ref
amount=[ref_include_array{:},amount];
amount=unique(amount);
idv = cellfun(@(v)any(ismember(v,amount)),A);
idvv=A(idv&~ref_include_index); 
amount=[idvv{:},amount];
amount=unique(amount);
idr = cellfun(@(v)any(ismember(v,amount)),A);
idrr=A(idr&~idv&~ref_include_index);
amount=[idrr{:},amount];
amount=unique(amount);
idm = cellfun(@(v)any(ismember(v,amount)),A);
idmm=A(idm&~idr&~idv&~ref_include_index);
amount=[idmm{:},amount];
amount=unique(amount);
result=[ref_include_array,idvv,idrr,idmm];
this code sorting A according to ref. if size of A is changing I have to copy and paste this line 
idm = cellfun(@(v)any(ismember(v,amount)),A);
idmm=A(idm&~idr&~idv&~ref_include_index);
amount=[idmm{:},amount];
amount=unique(amount);
Is there any way to write better code for this?

Best Answer

ref = 69;
A   = {[1,2,3,12],[19,34,37,15,33,35,36],[19,20,21,22,23,5,8,11,13,15,17], ...
       [37,38,65,40,42,49,66],[5,11,3,12],[69,19,21,22,23],[69,70,75]};
Result = {};
while ~isempty(A)  % As long as A is not empty:
    % Find vectors, which contain any element of ref:
    match  = cellfun(@(a) any(ismember(a, ref)), A);
    % Attach found vectors to the output:
    Result = cat(2, Result, A(match));
    % Find new reference vector:
    ref    = unique(cat(2, A{match}));
    % Crop matched vectors from A:
    A      = A(~match);
end
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