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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.
I have the same issue with Java, even though my code passes the test cases, when I hit "attemp" it fails for some tests that I don't have any clue about.
It's a problem with your code, if you test it with, for instance,
"(){}[]"it returnsfalse. That test is not in the sample tests, but it is in the kata description. You need to rewrite your code so it works with strings that are not symmetric.That doesn't seem a kata issue at first:
Post your code here, using markdown formatting and mark your post as having spoiler content. It's probably a problem with your code, use Question label for that.