800 ms for all the puzzles together or for one sudoku?

Agreed =)

Output format varies for different languages - e.g. for Java it is Set<String>

Please refer to the example tests for clarification what is expected format for your language.

Thanks I'm glad you liked it. :). Thanks for your time solving this kata.

it's surely 29 chars. 12 other guys and my solution are same as this one ;-)

But this one is exactly 29 characters, not 30
it should pass ;-)

`

It's a sadly story :D

The description says:

... returns the element u(n) of the ordered (with <) sequence u

< order doesn't allow duplicates.

Thanks for your post.

Glad to hear that my Kata Series has piqued your interest in compilers and interpreters :D Don't forget to check out my other Kata Series as well :D ;)

I got the same error, and got sucked in it for a long time.
What does \xef\xbf\xbd mean?

Thanks!

Same error here, please fix the test if possible.

Same hole..... And i am now hoping that you were able to go past it haha... If yes, hints would be appreciated ..

Hi!

Thanks for the comment, I'll change the problem description to be more explicit. I don't expect you to give every valid solution, I just expect you can give me one of the solution.