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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.
Cystal translation kumited; your random tests do not look so random to me...
FYI, I was coming here just to understand the low approval; and I just ranked as 6kyu :)
@Chris Rand - Thank you for the advice. I updated the code in the backgroups "full solution" and confirmed that a test.assert calling countRepeats succeeds as well.
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Updated description to make it clearer.
Thank you.
Make it obvious that iy means not just word characters but really any character for the matching.