this one is good

Thank you! I am so stoopit

The test consists huge figures so it takes a lot of time

Good one :)

Very simple and clear. Tnku;)

Google a lot, there's usually a function for anything

Tests are correct and problem is your code returns It's not possible! (which doesn't work with eval) when there is an answer (which works with eval).

I get always SyntraxError EOL and it points to end of return "It's not possible!".
But I couldn't get what is wrong. I checked everything. It seems to be an error of your test script.
It seems because "It's not possible!" is not evaluable ...

The same solution as mine... Well done

They are basically the same. As per the documentation:

paste0(..., collapse) is equivalent to paste(..., sep = "", collapse), slightly more efficiently.

Such a clever solution using regex.
Thank you.

Incredible! Love it!!! Thanks for helping me learn. Any tips when solving challenges?

kata name says "count odd number below n" and below 1 or 0 there are no odd number greater than 0, i have tried your solution and could't reproduce the test fail.

I get a test fail, due to the possibility of getting n = 1 or perhaps 0. I couldn´t print it.

Thank you, Blind4Basics, I logout and in again. Then it worked. Just updating page didn't work. Thank you for fixing!