me too.

I have learned ,that's very beautiful!

Work smarter, not harder.

I feel hella smart for figuring ts out

ヽ（≧□≦）ノ

ヽ（≧□≦）ノ

it took me some time until i figured the -1 and -2 to get the second form the last

Because for char in s, we are iterating over each character in the string s, and for each character c, we are multiplying it by 2 (c * 2) to create a new string with the character repeated twice. The join() method is then used to concatenate all the doubled characters into a single string.

Ok, sorry I didn't know...

You should not post solutions, otherwise anyone can see them.

I have added the spoiler flag to your comment.

Wow, smart ^^

same

i did that throws error had to check for string len 2 or 3

Please add support for the Rust language