Sadly solidity won't allow that in terms of call stack (1024) max.

I'm just another dude who got confused by the title and the description. I think the kata description should have '-1 -2 -3' as an example, same for '1 1 1'

i got this failed test message: Up and down: expected 7 to equal 4
what does it mean?

CoffeeScript translation

Incrementation by negative values? A bit confusing, don't you think?

Hahha I think I tried the whole big Int lib to see if it worked 🤭

wat

I am completly agree with with issue. It needs to be fixed, it messes up the task solving and make solutions hacky

My goal with this solution was to write the function in an elegant way that could handle any number of linked lists as inputs.

hah, looks like i'm not the only one who "cheated"(?) ;)

Clever use of the spread and repushing into arr but very inefficient memory wise :p

Beautiful!

Very interesting use of yield*

Very pretty

This puts memo in the global scope, since it's not called with the new keyword, this refers to window.