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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 edited the description to clarify that if
mandnare equal, the range is empty and the result should be 0. I added tests in the Javascript and CoffeeScript test suites to verify that solutions do return 0 whenmandnare equal.I'm sure the author would appreciate it more if you suggested a better description rather than just harshly criticising and being very negative about it. It is easy to be critical from your armchair.