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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.
So strange. I actually just submitted my solution a few times out of frustration and it suddenly passed. I guess the random error generator generated just the right conditions. :) But I was able to look at some of the other solutions and see that I was pretty close. I just need to learn to optimize my code.
My solution passed 93 tests and failed 11. I think what I've not accounted for is the path back. Do you have to take the same exact path you took or does the quickest path back work. My code assumes a perfect grid and time to get cak is calculated based on the quickest way back and not the way you came.