Closing because it was never answered and there will always be ways to cheat.

It's hard to detect if it's written inside a comment. What do you propose? IMO it's not a kata issue.

According to PEP 8 - Other Recommendations:

Always surround these binary operators with a single space on either side: assignment (=), augmented assignment (+=, -= etc.), comparisons (==, <, >, !=, <>, <=, >=, in, not in, is, is not), Booleans (and,or, not).

Hi,

You should read the documentation about authoring, if you're interested in that. You might see why your kata isn't "welcomed" so far (no context, the task is totally articifial)

(Other than that, the expected value has to be computed first, otherwise the random tests are "vulnerable". => that's the issue part. See this documentation too)

Cheers

Description is hard to grasp ... solved by testing and tweaking but I have no clear idea of what the task really is.
If deobfuscation of description is not part of the kata, description could be improved.

Fixed description
Sorry for my bad english, i am from Belarus

The description is still incomprehensible and wrong. Not only "remove last digit if sum after step 'if sum is odd, add normal number to the end' is odd" is a terrible explanation but the author's solution doesn't follow the instructions again. The correct behavior is "if the number of digits is even before possibly appending a 0 at the end, remove the last digit".

Fixed description and solution

Fixed description and solution

Looking at the kata author's reference solution, the description does not match the actual logic at all:

• if length of sum is odd should be if length of number after "if sum is odd, add normal number to the end" is odd
• remove middle number (21120 -> 2120) should be remove number at/after the middle, e.g 12345 -> 1245 and 1234 -> 124
• if added 0 is actually remove last digit if sum after step "if sum is odd, add normal number to the end" is odd

Yeah I'm confused about this as well.

if added 0, remove it

What on earth does "if added 0" mean? And why do we remove zero in 12 -> 2112 -> 21120 -> 2120 -> 212 but not in 13 -> 31 -> 310 -> 30?

For 4345 we do not add 0 at the end because len(str(4 + 3 + 4 + 5)) is not an odd number, but the expected result is 5440, wtf is this???