https://www.codewars.com/kata/622de76d28bf330057cd6af8
that's not a "duplicate" though? Anyway, I am unable to delete this kata since I have "unsufficient permissions"

User does not have permission to perform this action

It's 1 to N, while mine requires N1 to N2. Thought I haven't seen the Kata that you are referring to, thank you. I am going to delete this one as it's deemed a "duplicate".

I am going to unpublish then, sorry for the inconvenience.

Thank you, I noticed this as well on the stage of translation to Python. Added it to sample tests as well. Also I couldn't find similar katas that has been posted priorly, if you would be so kind, can you give a link to the original kata that my kata is duplicating?

Parenthesis adds readability.
(look at the comments below)

There is no tests for negative number and incorrect input (like string instead of int). Maybe it's checked in another function and we just provide triangle check. Your solution tries to check - is number negative, but check it incorrectly. Compiler will just replace "a and b and c" to "c" or to first zero number. Try to do it by yourself:

>>> -1 and 1
1
>>> -1 and 1 > 0
True
>>> -1 and 0 and -1 > 0
0
>>> -1 and 1 and 1 > 0
True

I know. I was change solution but this solution I can't change :) I saw that trouble after I change my solution.

I too can't submit&test. [JAVA]

Author can add some unfinished code and make task more complicated.

That is very simple. Is simple necessary for codewars? But that interesting, that is great :)