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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.
Nice job. I hope I am not the one to come in behind you and have to update it.
Just FYI, you did not had to trim out the spaces in "time", if you had split it as: ", " rather than ",".
Best practice? LMAO. This doesn't even follow fundamental Java code conventions.
The test cases can be tricked easily, at times its giving us negative numbers and other times positive number and depending on the coders luck her can clear the kata easily.