Literally it's all you need to read to understand how maps work (though quite hard to get through, but defenetly worth it)

best brain)

big brain

thank you, i solved it

391 is not a prime number.

Backwards Read Primes are primes that when read backwards in base 10 (from right to left) are a different prime.

can anyone explain this to me?
expected [ 107, 113, 149, 157, 167, 179, 199, 311, 337, 347, 359, 361, 377, 389, 391 ] to deeply equal [ 107, 113, 149, 157, 167, 179, 199, 311, 337, 347, 359, 389 ]

holly frik lots of people solve it with so simple and clean code. feels so dumb :(

there are 5 data in the example,each data is formated, you should change it so you can look for avg,med,range

I stumbled on this one myself.
The description states that all characters should be treated as upper case.

can you at least provide better test

C#:
test structure are as follows
Assert.AreEqual(expected, Kata.TitleCase(sampleTitle, sampleMinorWords));
where Kata.TitleCase should contain 2 arguments (the original title and list of words to check in one string)

Test cases in test 1 goes fine as expected/sampleTitle/sampleMinorWords are present
While test 2 and test 3 don't have any sampleTitle, only expected and words list

You have to put it like string.Join(''), as in some other methods you have to write System.X instead of X. Annoying and common on codewars.

why the test are so annoying?

i sugest you should be patient and do 8 or 7 kyu kata, no need to rush bro

it took me half an hour, its okay bud, keep trying.