how?

easiest way..

Why? what you liked in that question?

Can solve with Linq.

you can do better

Easy with LinQ in C# solution.

C# works good. Nice question..

retired

I would not self vote "best practise" when you use string += ....

When you write a kata together, I think you should mention it in a footnote or in the comment section, to avoid any discussion. Also, why not try to come up with a different solution, as an additional challenge?

In C#, best practise isn't solid in my opinion. Alphabet can change in the future :D

We wrote the question with my friend. So we wanted to send the first solution. Have fun when soluting :)

Please explain how you submitted the exact same solution as the kata author's solution. This really shouldn't happen since the task is far from trivial one-line: so the most likely explanations are that either you're a sockpuppet, or you're cheating, or you're colluding with the kata author, which are breaking the site rules in either case.

(Also, upvoting your own solutions and comments would be obvious vote manipulation, which also violates the site rules.)

There are no random tests.

Nice question...