Many people write:

• "Am I crazy"
• "I don't understand"
• yada yada

FYI, There is no trickery to this Kata. It is just a matter of visualising the balls in a certain way -- think about equalateral triangles. When/if you understand what to do, the maths is very easy -- that is why it is only 7kyu.

Am i crazy ? how is it possible to calculate this if we dont know how much the ball is overlapping the next layer ? it looks like 1/3 but my code that use 1/3 causes error. So i'll just give, cause i cant figure out how much is the overlapping, if someone could help i would appreciate.

True, but i thought it was the same cause a empty string in c++ only have the null terminator "\0". Also i thought it should return false since there is nothing to compare.

Noooo, i wasn't suppose to submit i was still refactoring the code it was a missclick 😭.

nil or null or None is not the same as empty.

" If a or b are nil (or null or None, depending on the language), the problem doesn't make sense so return false. "

That line just cost me 100 hours of debugging because i thought that when the A and B vectors were empty it should return false.

I was having the same problem you saved me a lot of time.

Pls, can you show me a method that dont use brute force ?

you could launch a falcon 9 with this code

Hahahah you made my day