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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.
same idea but longer
same solution!
expected 51.199999999999996 to be close to -1 +/- 0.01
same idea but not a one liner
woow
same idea but so differently done!
mine is just O(1)
Woow!what a one liner
woow
soon to be a best solution
woow!
this is not fair at all
woow
it seems my solution will come up soon
xo i have got redundant extra join()
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