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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.
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In order to use
Math, you need to importSystemwithusing Systemor use a fully qualified nameSystem.Math.The C# apparently can not use Math.Abs, it should be able to.
I tested my current code code in Visual studio, with the test cases and it works.
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The he/she would need to make sure it doesn't overflow. Also the code for the challange would have to be rewritten a but.
Tho, it would be cool to have as an extre or something you can use in the test like if it was // out at the start.