I'm facing a Requirement Specs that can be simplified to this scenario. Simply put, the specs say to remove all duplicates from a list. This means not to leave one duplicate record from the list but to remove ALL duplicate records.
List01: a, b, c, d, c, a
Expected Result: List01: b, d
Since a and c were duplicates, they were removed from the list.
I've been struggling on this for quite a while now.
All help is appreciated. Thanks.