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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.
Solution is an overkill here. You could remove second loop and still work.
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What makes you think the Replace() would leave spaces on the start or end?
How come? Those spaces aren't any different from other spaces.
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But for the solution with is binary its perfect...
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