https://www.mathsisfun.com/numbers/digital-root.html

How the hell does this work??

Hi, I'm on it !
Do you have some tricks for me, in order to optimize ?

Language?

Thanks, I enjoyed it very much!

It was great Thx!

Thanks :-)

Always so many small teaching parts in your Katas! :) I did so far enjoy all of them!

Thanks for the Kata! it was fun

LOL. But officer, I swear they were dead when I found them!!

It sounded so easy at first, oh boy I was wrong, it took me 3 days :D Thanks for the fun ;)

One of the test on test_encoding_with_multiple_zero_bytes_inside_a_binary

[61, -8, 22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -98, -109, 119, -85, -92, 23, -111, -112, 31, -108, -125, -55, -44, -73, 95, 79, -120, 76, -53, 39, 12, -16, 102, -61, 120, -110, 2, -59, 55, -74, -120]

The seconds 4 bytes blocks are all Zeros(null), whyit expects this expected:<<~4nocm[zzz]!!!"jPBX('(Qje$P_7*-...>, only 3 zzz instead of 5 zzzzz for that block?

Thanks a lot, this was lots of fun. I also learnt about the Japanese language, double win! :)

it was fun kata, especially the performance optimization part, I liked my initial slower version of the code much better as it uses more recent libraries for java.