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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.
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that is a smart solve ,, i like it , i know that is don't best practice and there was more solutions is more readable than it's but this is a new practice and a new way for the solution for me, so i like it.
i know my english language is bad :)
Converted it back to readable form. It's just like the other solutions.
Thank you.
Such a graceful solution!
dumb....-_-
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Have never seen such a genious regex, can u explain it?
Use the spoiler flag dammit.
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If n==0, the output would be 9. Fortunately, JavaScript's modulo operator doesn't work exactly like the real one--thank you Brendan Eich.
"You cannot take the square of 'nothing' and have it also equal 'nothing'" -false
"In mathematics, a square number or perfect square is an integer that is the square of an integer" -true
0^2 = 0. Plus, they're both integers.