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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.
something is weird, when I execute test cases I got all green, but when I submit a thousand of errors came up, any idea? this is for java solution
it's phisics, N->W->S->E will lead you to exactly the origin point, at least we include magnitude for each direction , like 1 mile to north , 5 miles to west , etc,
this exercise should be redefined