Very fancy kata indeed, congratulations.

In this kata you've got to minimize the total amount of the purchase price by buying different titles which correspond to different letters of the given array and applying the shown discounts.

Swift:
please fix error in tests:
Tolkien().calculateCartTotal(["F", "T", "H", "F", "T", "R"])
(add brackets)

Python, Ruby (at least): examples in the description should be included in the sample tests

Python translation: https://www.codewars.com/kumite/647fac2524fe6dfd78ccdb61?sel=647fac2524fe6dfd78ccdb61

• Initial solution in JS failed to compile due to wrong naming convention used

• Parameter name should be camelCase

fixed some time ago

The description for two books needs to be fixed. Since it doesn't show anywhere that they apply only if they are different, I had to fail the test to realize that was not the case. Loved the Kata nonetheless. Great for practicing TDD, and is all about business logic.

I was able to figure out the problem and have edited the kata to actually work.

Yep, I am running into this problem as well.

In Ruby, I'm passing all the set tests but getting an error for the random tests, below - any thoughts on what's going wrong?

block in sum_book_sets' each_index'
sum_book_sets' ref_ans'
block (3 levels) in ' each'
`block (2 levels) in
'

You are correct in your suspicion, there are no chemical symbols that consist of more than two letters. On the other hand, there are molecules with double-digit numbers of atoms, e.g. C6H12O6.

Resolved?

I think you've done this already.