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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.
oh, got it now. thank you very much!
(ok, i corrected it like you said but still crashed in the same way.)
Everything worked with the CoreTests, but on the Random Tests it crashed: "Caught unexpected signal: 6". I printed both my input & output strings, and the output for the Random Tests is 100% correct. Don't really know what to do. (The language is C)