loved it

This is quite deep solution for 8 kata

... and this also shows how the square root can be easily obtained without relying on floats. Sadly, there is Math.sqrt or **0.5 everywhere.

Damn i like it

sharp!!

It is faster, provided the CPU doesn't have a multiplication circuit in the ALU - that's still the case on some microcontrollers.

Most CPU designs throughout history did multiplication in anywhere from 4-10 cycles, while bitshifting often takes 1 or 2 cycles tops. That's a 5-10x increase in performance right there!
It was common and often needeed up until the 90's, when computers and coders shifted more away from having to eke out every iota of performance from the hardware directly.

I've seen this method in prod code only once, though - from a 70+ year old guy who did firmware programming and that I worked with. I figured out the puzzle pretty quick, but I'll never forget the look on the junior's face... like it was dark sorcery deep from the tomes of old.

cool solution. first time I see negative infinity in python, noted

Very well done !

This one is pretty AND good. Just using reverse would mutate the original list. That might not be what you want. The [...list] prevents this by making a copy first.

https://stackoverflow.com/a/13104500

Reraised as an issue.

Perfect!

making sure that noobs get confused 🤣

Very clever! Good catch that you didn't need to translate '456', as their position remains the same.

I think they meant the note about Python 2 in the description, which I just now removed.