Hi!
I have two spreads with the same count:
0 3 8 5
3 0 4 6
Each two elements at the same index form a pair.
(0,3)(3,0)(8,4)(5,6)
There will be combinations of pairs occuring twice, in switched order.
(0,3)(3,0)
How can I find these doubles and throw them out so my spreads look like
0 8 5
3 4 6
?