What is the difficulty level of this kata?..

That was a really nice kata

One small suggestion; the description states:

A player who completes the fourth side of a 1 x 1 box earns one point and takes another turn

It left me wondering whether completing two boxes at once provided with 2 extra turns or only 1. It turns out it is the latter. Perhaps this could be mentionned ?

Not a big deal as long as edge cases for same total sales are tested

C++ translation published

In Java's sample tests (sampleTest2) :

The assertion:

assertFailPopulate(blobs, invalidGen);

always succeeds because in assertFailPopulate():

try {
    blobs.populate(genToLstOfMap(gen));
    fail("Invalid elements should trigger a RuntimeException in 'populate'");
} catch (RuntimeException e) {
    assertTrue(true);
}

the genToLstOfMap() (which is a tests suite function, not a user function) throws a nullPointerException when called on invalidGen, and nullPointerException is an instance of RuntimeException. So the assertion always succeeds and the user's code is not even called.

No, you are forgetting that the blobs can move diagonally (Moore neighbourhood). The blob of size 4 at (4, 3) has 4 potential targets at a Chebyshev distance of 3:

the blob of size 2 at (2, 0), the blob of size 2 at (5, 6), the blob of size 1 at (7, 2) the blob of size 3 at (7, 0).

That last one is the chosen target because it is bigger than the others.

Java conventionally uses camelCase though, and the code examples from the description make it clear what the method name is.

IMHO the kata definitely deserves a dislike. firstly, it is meaningless, I didn’t learn anything new and the solution requires some primitive practical skills, and secondly, I had to waste time passing tests with newline character.👎

It took me 30 minutes just to understand this kata :(

• Entry denied: missing required work pass.

• Passport check case for Ban nations and expiry date

Above cases are not guaranteed in JS at least (should have fixed tests for that)

I completed this Kata and I must say, it really ilustrates how real life projects are done. Unfortunately, that means that it is tedious and you encounter a lot of errors that you don't know where they come from

I wrote a solution which works on IDE, but somehow on random test it have mistake, and when i try that exact problem on IDE, it works perfectly.

Implemented a deterministic solution with complexity O(n^3) in Python. Solves 70-by-70 puzzles in <10s on my laptop.

It's worth doing these kata just to see others' one-liners.

A very good and funny kata! Thanks to author!