Name:Grzegorz Sparzak
Clan:Bling SH
Member Since:Jun 2016
Last Seen:Dec 2019
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Following:36
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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.
this testcase is used to test if user modified the input. If arr1 passes in user's function, and then its value has been changed, this testcase will fail.