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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
youre close to your given runtime but using arr1.sort() and arr2.sort() at the start ruins it - try arr1.reverse() and arr2.reverse() instead
This comment is hidden because it contains spoiler information about the solution
No. Your solution is not O(len(arr1) + len(arr2)).
yes, the examples given in the description are different from the sample tests. I have checked them, rigorously. You shouldn't use the ISSUE tag unless you know there's a problem with the kata code and can describe it or give some evidence. Anyway, if you remain stuck, you can post your code (with a spoiler tag), and I can take a look for you. cheers
00
can be a palindrome only if it's not a string, and if it's part of a bigger number (e.g.100
)0d0
should not be one, as it's clearly a string (there is a letter in it), so it's not numerical