f = @(x)repmat(2>n(unique(cellfun(n=@numel,x))),n(x)>0);
f({})
f({[1], [1], [2]})
f({[1]})
f({[1 2 3 4]})
f({[1 2 3 4 5],[2],[12, 314123]})
f({[1 2 3 4],[1]})
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