Hey. I have a question really similar to this one:
Let's say I have an array with:

(1, 1)
(1, 2)
(1, 3)
(1, 4)
(1, 5)
(2, 3)
(2, 3)
(4, 1)
(5, 1)

[download]

If I wanted to get rid of duplicates of (x, y) AND get rid of any duplicates of the reverse (y, x), how would I best do this?
ie, I want to end up with:

(1, 1)
(1, 2)
(1, 3)
(1, 4) or (4, 1)
(1, 5) or (5, 1)
(2, 3)

[download]

Really appreciate any suggestions! Thanks!

In reply to Re: finding duplicates in an array by Anonymous Monk
in thread finding duplicates in an array by bioplanet

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