When I realized what the essence of the task was, I had a good laugh. Good kata, I enjoyed it.

Javascript.
Simple solutions applicable to final random tests not suitable for sample tests.
Specifically a test with arguments: "eat a burger and drink a coke", "drink a coke".

I am late with this comment. But this kata is quite suitable with 7 kyu rank. The only thing that can be difficult is to read the description correctly.

Damn, I forgot about Array.prototype.some.
Four o'clock in the morning, it's worth taking a break.

Month start from friday and must have 31 days. These are the conditions.

one of the best solutions i've seen on this site

Asks for an answer [x, y]. But corrent answer is [y, x].

damn, this is cool and clever

filter x 3 is too expensive for action what can be done in one loop
this is definitely not the best practice
but it's understandable

In random tests, it is possible to catch an array small enough to see expected result. My solution problem was related to using objects. I just forgot that there can be no two identical keys. -_-

Good advice. Try it! The formula helped to avoid the cycle.

QqeRoOpPaAdDgbB - "ring" characters