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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.
Need my brain charged xD
Simple and straightforward. But time consuming.
Sum is slow.
For large numbers one should use (start + end) * 2 / diff.
OMG
Fancy
Sexy
Clever
Marry me!
Now that's brute force xD
With my respect...