Finding number of all nested cells in a complex cell

Question

I have a nested cell which represents a tree-structure:

CellArray={1,1,1,{1,1,1,{1,1,{1,{1 1 1 1 1 1 1 1}, 1,1},1,1},1,1,1},1,1,1,{1,1,1,1}};

Answer 1

Here's a simpler approach using a single while loop and repeated concatenation of the sub-cells:

temp = CellArray;
nNodes = 0;
while iscell(temp)
  index = cellfun(@iscell, temp);
  nNodes = nNodes + sum(index);
  temp = [temp{index}];
end

And the result for the sample CellArray in the question:

nNodes =

     5