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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.
Sure! field[5][4] contacts with field[6][3]
It's funny I was stuck on that too today.
Theres a submarine which touches a cruiser, isn't there?
4-3 < 5-1
In which case, the instructions should say that.
Yes, if you imagine the answer to be [x, y] then the result given must be the one with the lowest value of y.
The 7 is before the second 5