lousy kata, no higher than 8 kyu

Can someone give me at least a semblance of a clue in how to solve this?

I saw the solution, it has no much to do with programming. I think this Kata is very bad designed. :(

Please don't post solution code in the discourse without a spoiler tag. If you are posting code of any sort, please format it correctly.

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Your solution is close but your logic is not quite correct; add the following test case and see if it helps:
test.assert_equals(get_num(400), 2, "Wrong output!")

I found more complexed pattern. Unfortunately, it passed only these initial 5 test cases, no further. Such a shame and loss of time. What could be the chances for that. So...

If the number has even number of digits:

3479283469 => 34792 | 83469 => sum A | sum B => sum B - sum A => 30 - 25 => 5

123321 => 123 | 321 => sum A | sum B => sum B - sum A => 6 - 6 => 0

If the number has odd number of digits:

90783 => 9 | 0783 => count of digits smaller than first digit => 4

300 => 3 | 00 => count of digits smaller than first digit => 2

89282350306 => 8 | 9282350306 => count of digits smaller than first digit => 8

.

solved.

python new test framework

There are some problems with the Java translation.

I don't do Java.

Could you review it?

Because nobody reviewed it, and there is no way this is a kata issue (= a bug in the kata).