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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 am a newbie to Java but interestingly this solution runs faster than the StringBuilder. I tried to run them both to see which one runs faster. But I guess its because the string isn't long enough? I am from the Javascript land so I was excited to see this approach since this looks close to JS.
Well, I apparently didn't realize "product" in verb means that. Learning something everyday. Thanks!
Instructions are so off. It didn't even say to multiply elments in the array. I had to figure that out with the test below.
why '00:00' equals to 12:00?
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