Approved

python new test framework is required. updated in this fork

'Looks like you've solved it'

it is showing list out of index error

...

What's a linked list? (probably something in C++, not in JS )

Well, that's a CW bug, and it is not new.

Thanks for the reply! I've tried using unshift, it works just the same but it times out. I am not really too familiar with performances in terms of array methods, or why should one be more efficient than the other. Also, there have been several katas that I couldn't complete because of this problem.
I would really like to find out once for all what would make a simple code like this so much more efficient!

CoffeeScript and Crystal translations kumited.

splice and push are slowing it down. It looks like you have O(n^3) code almost.

First, can you figure out how to do it without splice?

man another amazing kata, thanks!

• Oooooh Boy, Michele Missed you Bro, remember Your Lengthy Solution in See You Next Happy Year , Hope You're Doing Well So, I've Saved/Kept Your Kind Words On My Pc FOREVER

I can't submit it for it times out, but it's probably my code that may well be written more efficiently, If you want to give me an advice

• Well, Your Most Recent Trained Language (JavaScript) is not in my ToolBox, But There are Some Fixed OutLines Even if the Language Changes :

• The Vector's/Array Size that Passed to the function contains 60.000 elements, the random Ones Contains 200 Assertions with 60.000 elements for each, Which Means, O(N log N) Solutions Will Only Pass.

• in (JS), Splice takes up to O(n) in its Worst Case, Hope This Help

• So, Mike, Try to reconsider the Posted Code, Tune it to the Bone, Tuned to Hear Your feedback, wish you all the Best Bro .. Regards .. Zizou

As a pro, I wouldn't consider this best practice because the comments are just noise, distracting from the really basic code. I'd facepalm if I saw this in production.

seems like a duplicate given that it only requires basic iteration to filter and map values using simple arithmetic operators.