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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.
:DDD
Agreed, I first solved it in Python and while I am fluent with most of the string methods after years of Python, I had forgotten about this one in absence of practice and solved it with less advanced features and alorithmic logic. Built-in methods are just masked hardwork of creators, and they can indeed be less efficient in cases and you would needa use your own logic!
True, the code would see nothing in the list and then just move on giving an empty string.
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Wow, why did this not come to my mind? I spent a lot of time on this..
Anyways, I am just learning and improving so this should not be counted as waste :D