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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 smart
this is beautiful
This comment is hidden because it contains spoiler information about the solution
good explanation and so strange code, fully ignorirng explanation
Nice solution!
I noticed that wording as well - but "by each direction" isn't correct English (sorry!), so maybe this is better:
"Each block takes one minute to walk."
You don't need to specify the direction, since that's already clear from the context.
Maybe "You always walk a whole block by each direction" or something like that would be better?
Don't know if this is a common mistake but in the instructions it says you can only walk one block in one direction and I confused that and thought that having consequtive duplicates was not allowed. Don't make that mistake :D