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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.
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Already raised as an issue.
It's not clear whether the code should assume single- or multi-byte strings. Assuming single byte strings makes things a lot easier.
Gotcha. Cheers for the explanation.
He meant you should add tests with random generated strings, otherwise it's easy to hardcode the answers.
But as already mentioned there is an approved kata that is even a little harder than this one. So I doubt this one will be approved.
Random in which sense?
Also, lack of random tests is a issue, not a suggestion.
A duplicate of https://www.codewars.com/kata/word-a10n-abbreviation
Random test cases