There is actually no difference as these functions are evaluated lazily.

ranks can't be changed ~~

very artifice. thank you!

I DO think so too

Meh

Good solutuion, but it will be better first to take elements and then select.

Yes, if given [0, False] then your code should return [False, 0]

Totally agree - I initially read the problem as "modify in place", only to see "None" wasn't passing the tests. The description should specify the array to be returned.

I guess this kata should be reworked for CS. The function should take Array or object[] argument and returns the Array or object[]. It will still be easy for 5 kyu (even for 6), but CS task will look like tasks for other languages.

/For the start try to remove all #s.
Then think about removing the letter before # (...if there is any)/

couldn't resolve this kata

pls help i couldn't solve this kata

Of course it's easy kata. But I'm trying to solve all katas using LINQ and I spend some time to found the solution for this one. Thank you for this kata. :)

No problem :)