Make sure the string ends with a newline.

Rust translation kumited!

I'd love to receive feedback. :-)

If not, sort it and return nothing (sort in place). I haven't solved it myself, so I can't really give any hints :D

I passed all the tests, but when I try to attempt my code it say's that the vector content should stay the same, cant understand what I'm doing wrong

After testing it shows expected result totally similar as an actual but still don't accept it, does somebody knows where can be the problem?