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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.
That is a great Kata. I like the path/topology problems to solve. Recommend to anyone who likes this Kata to attempt these problems:
https://projecteuler.net/problem=18
https://projecteuler.net/problem=67
https://projecteuler.net/problem=107
This is a great kata! The obvious solution worked fine for me, but failed the efficiency test. After looking at some algoritms, found a much more efficient way to solve it :) Very satisfied with it.