Hello! Please, can you explain to me why (nbPetals-1)?

Very clever!

For python, it would be nice to put hash_ for the first argument name as hash is a buitlin in cause, causing shadow names

C translation (author gone)

Great Kata! I advise you to solve it in Python, it will be easier and cleaner. And if you've never touched Python before, it's a perfect Kata to start with.

approved

that it

There is nothing easy about this kata. You need an efficient permutations algorithm, and with luck, it'll not time out.

Consider hash of all possible words.

Any hint, Where I can start?

Yes. If you are sure in your solution and it times out - try a few more times (my solution passed time out on a fifth attempt).

Same here. Has anyone solved this in Kotlin recently? Just to make sure it's not broken.

Test.assert_equals(out, '/usr/bin/killall') in the sample tests is incorrect.