The question statement above calls for border cells to have a height of "0 or 1". Perhaps to give the candidate some fudge-factor for matrices having an odd nu

The question statement above calls for border cells to have a height of "0 or 1". Perhaps to give the candidate some fudge-factor for matrices having an odd number height or width. I realize that this is a contrived testing problem, but to me a pyramid with zeros in the border cells sounds wrong. The area just beyond the border should be zero. Being within bounds of the pyramid intuitively should imply some non-zero height.