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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 don't understand why it is such a problem to write a "+" instead of linking a wikipedia article.
Inconsistent indentation in the initial solution (including tabs which don't work well in the editor).
Missing edge case tests with
expectedResult == 0
.expectedResult
is improperly named, choose something else, liketarget
orxOrTarget
orpairingTo
or...btw: talking about complexity is worthless if you don't enforce the requirement.
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