can someone tell me what method this is? This is my first times seeing it

codewars ppl literally using just array and some maths to make everything O(1) efficient

I love this! Thanks for teaching me a new function. :)

I've never seen a solution like this before, and I learned from it as a direct result. Thank you OP. :)

they really be pulling out any library god has to offer

cleannnnn

It still throws an error on the kata running python 3.11, and in my IDE (also running python 3.11). I checked in idle, and it throws the division by 0 error there as well, so I wonder what's different about your setup that it doesn't throw this error.

looks like something has changed. the OP code runs fine in idle. add works fine. it throws divide by 0 error only on divide.

good idea!

beautiful

great idea! next time will remmember that solution:)

And why is that?

please use a spoiler flag when discussing code / solutions. I added the flag