You're welcome, yours is definitely my favorite solution! :)

Mmmmh... Yeah, you're right, I didn't think about that.

Let's try another fork to address that. ;)

Thanks for your comment! :)

I love the code readbility. A little extra computational time to always check every cell for both string matches (instead of just "b"), but only by a factor of 2, which reduces to nothing for O(x*y) for large x and y.

Please correct me if I am wrong anywhere, I am still learning.

Troubleshooting: If you get all, but the last of the sample test cases, check the pattern of bs-factor values.

Hint: The elipses signifies an inference and continuation of the pattern of all values, not just the last value (i.e. it is not the case that all remaining values are 8) to calculate the implied p-values.

Thanks! I took the addition challenge a step further: no if, no logical operator, only one comparison - madness, you said? :')

This is even more awesome than it is obfuscated, and it's pretty obfuscated! :)

"No idea!" :) Nice one.