Very fun! I had to spoil the solutions to get an idea of the direction to go, though. Perfectly good test of knowledge, but a lowsy teaching moment. I would have appreciated a reference to some actual syscalls rather than the wikipedia page for threads.

Approved by someone.

Lua translation !

7 years after you, we came up with almost exactly same solution to the same question.

It started as a puzzle kata in the beginning, but with 'suggestions' and 'comments' like yours, it has turned into a boring kata like all the others. Feel free to update it if you wish; I don’t care anymore. 😜

"concurrency" tag should be attached.

Very funny Kata! Thanks to author!!! Great job!

Really nice solution. However truncating hello to hell makes it weird

this was crazy difficult and all the answers are outrageously different. not sure I learned anything from this besides cracking codes is really hard.

работает!

O(N * log N) though it should be just O(N)

I'm shocked, never knew it could be done in 1 line! Very smart, kudos from me

In the description, you wrote:

• The reinforces strings consist of only small letters.

Although, as we can see in the examples, it can also include digits.

Also, "reinforces" is a verb only. The correct noun is "reinforcements".

why s.slice(1) 2 times?

thanks!