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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.
Figured that out this morning as well :)
The Description states that:
Rotate 1961 and you get 1961. Rotate 9 and you get 6.
var x,y string = "0","25"
upsideDown(x,y); //4
//the valid numbers in the range are 0, 1, 8, and 11
Why are 6 and 9 not valid like in the 1961 example.
I think it's available now, enjoy it
I miss a Go version on part 3 ...