If we can use the faster approach without causing any tests to fail, shouldn't we?
Could the faster approach be changed to require less memoization space, seeing as we only ever seem to care about the bottom right corner, and at most the upper and lower boundaries of the path to the result?
So, we have a slower approach.
If we can use the faster approach without causing any tests to fail, shouldn't we?
Could the faster approach be changed to require less memoization space, seeing as we only ever seem to care about the bottom right corner, and at most the upper and lower boundaries of the path to the result?