That took me longer than it should have... Great kata!

I found the instructions ambiguous. Should state what elements / properites of array hold and explicitly confirm wether to update a in place or return a new array as function output. Test says "remove elements from a" which implies in place modification but actually expects returning a new array.

Test cases seemed to imply that both arrays are sorted, however this is never confirmed in the instructions.

You are computing the symmetric difference while only A \ B is requested by the description.

Not a kata issue.

Very fun! deff a great array tutorial :)

In my opinion, firstly, we have to remove duplicates from b: list(set(b)), then remove all suggestions.

I'm surprised this is a 6 kyu tbh

how to do that? i'm confuse

the task is wrongly framed, it doesn't say anything about the use of sets (which turns the task into a joke) or standard array functions in different languages simplifying this task

Next time, do not post any solutions, please.

Can youhelp