It is a cute code enough.
There is an interesting model of variation.
To have a row variation and column variation instead of cells variety

AWESOME!

Perfect time of execution

It just good old bool shit. No sonar of quality here - buhaha

I am a little impressed by your DAN, you probably know better others - However as for me, this assessment is not completely fair for a novice author and it is demotivating.

I suppose it should be blue. I haven't found any yellow with the performance issues. This one has this kind of challenge - the challenge isn't great, but it presents.
Sounds strange for me to make it yellow.

By the way, is there any guide on how to determine the complexity? - I feel discomfort when evaluating other people's katа - it's hard to heal the objective complexity from your own ignorance or knowledge gaps.
Thank you in advance.

Excellent kata. Not over complicated and well described.
However, I would propose to add more challenges into performance.
It should limit time by the test or provide a much much more long array (...crazy laugh....).

Anyway, I consider it like good training kata for each who has just only base algorithmic knowledge.

Keep it up - do something similar again

Thank you

Thank you, I've used numbers to speed up the function and looked for some consistent pattern in binary logic.
Your solution is really fast.
I will try to understand why it works.