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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.
the algorithm i wrote takes O(n) at its worst and O(1) (constant time) at its best.
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I can't open the root file. It keeps saying I can only cat local files, not absolute paths. Any hints?