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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.
isn't 6 kyus are supposed to be solvable with 1 or 2 lines? these seems a little hard.
I took a good ten minutes figuring out why [1,3,2] became [3,1,2]. Sighed.
I was able to do it after messing around for a while but I doubt I would be able to do it under time pressure and when someone's watching me.
Same idea with mine but this one is prettier. I'm just glad I'm starting to get the hang of it.
So this seems more like a pre acquired knowledge than a one that can be brainstormed on the spot, like math equations. "Even XOR digits cancel out each other".