Question

I have a list of items.

The problem is the returned items (which I have no control over) return the same items THREE time.

So while the actual things that should be in the list are:

1. A
2. B
3. C

I get

1. A
2. B
3. C
4. A
5. B
6. C
7. A
8. B
9. C

How can I cleanly and easily remove the duplicates? Maybe count the items, divide by three and delete anything from X to list.Count?

Answer 1

if you are 100% sure that you receive everything you need 3 times, then just

var newList = oldList.Take(oldList.Count / 3).ToList()