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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.
I think its fine
The description doesn't say that a word's score is the sum of the scores of its letters. That should be added even if it's kind of implied right now.
I had to look at this discussion to realize there is a global variable FIELD hidden somewhere under the hood. It was not clear to me from the description.
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Why would there be only two values in the array? There are only two different values for the key but that doesn't change anything. Or am I missing something?
Yes. But considering you have only 2 different values in the array...
Isn't this O(n^2)?