Looks good, except for this line

let input = rand.gen_range(1..20000);

It seems overkill, and is way outside the intention of the Kata. e.g. No pet, (and no pet owner) is going to live for 20000 human yrs. Make that a much smaller realistic number number and then I will approve it.

:-)

Approved. Thanks!

No reason. Didn't think of it at the time.

Fixed all those monro quirks. Thanks.

LGTM. Approved. Thanks!

I fixed a simiulation typo in the description. Were there any more that you found?

Thanks for the translation...

I think you've put the "Sample Test Cases" and the "Test Cases" in the wrong files -- IMO should be the other way around.

Please also remove those TODO comments from your test files.

Thanks!

I modified it slightly to display the tree and nuts on the ground regardless of test pass/fail. This make it same as all other translations.

Please take a look at my hacked changes (I'm not a Haskell programmer). If it seems OK, I will Approve.

Approved. Thanks.

LGTM. Approved!

Thanks. As well as displaying the tree, please also display the line underneath which shows the expected number of nuts.

Approved. Thanks.

LGTM. Approved.