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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.
I had the same issue.
Solution: do not modify the input arrays! :-)
probably something with ruby I don't yet get in this case. Cheers
Not an issue of the kata, 2068 guys passed it (201 with Ruby). If it goes on report as a bug at CW: Forum->Bugs.
RUBY:
My solution passes all the test but I get a NoMethodError (no method length for 13:Fixnum in mxlndfSol()) afterwards and can't submit. No idea what's going on.