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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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Regarding checking for integer I know only above way and this
@dlcoe, what is more efficient way?
or only the first appearence?
Output should be: 20, 89, 2, 92, 2
with this solution i got exception:
System.InvalidCastException: Unable to cast object of type 'System.Int32[]' to type 'System.Object[]'.