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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.
Yes you should find the equal squared elements one to one as you put it.
For example:
a1=[2,2,3]
a2=[4,9,4]
This would return true, as there are two "2" elements and one "3" in a1 array and when squared will be equal to a2 irrespective of their position.
a1[4,4,5]
a2[16,25,25]
This would return false.
Hopes this clears up your confusion.
A troll npc