Hey,

There is a similar kata to this one, which is ranked 4 kyu, which asks for a harder task to convert back from the roman to the arabic dates. It might be worth adding link to it. Thanks.

I learned a lot about leaps years thanks to suggestions. As long as one considers the Proleptic Gregorian callendar, the formula is still correct. Therefore, I agree it should be added in the descritpion.

Java Translation is ready to check.

I see, I'll change all the messages. And thanks for pointing at the IntXXX specific implementations.

I decided to put all tests in one method. This way all groups are executed sequentially. I wanted random tests to get executed only if all fixed tests get passed.

Thanks. I can't do that now but I'll add random tests ASAP.

EDIT. This is my first translation, so I hope I have understood the concept and added correct random tests. Thanks.

kyu7 is IMO right level.

I found the kata very cumbersome. I read an article on Wikipedia to test against Primality and tried the rules like searching numbers lower than sqrt(n), only odds, etc. but it still failed on skip = 1,000,000 and limit = 10. I don't know why it took so long and have no idea how to skip things in Streams! Then, I found, again on Wikipedia, Sieve of Atkins. It's faster. I don't know if this is a proper training. I colved the kata but there are parts of the algorithms I still don't understand.

It's very good trick with different indices. No need for extra collections, collectors, etc.