Algorithm - How to delete duplicate elements in a list efficiently?

Question

There is a list L. It contains elements of arbitrary type each. How to delete all duplicate elements in such list efficiently? ORDE

Answer 1

If the order does not matter, you might want to try this algorithm written in Python:

>>> array = [1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6]
>>> unique = set(array)
>>> list(unique)
[1, 2, 3, 4, 5, 6]