Unfortunatedly the runtime efficiency of anything that uses this is O(n!) which is even worse than exponential. Oh my...
Oh, you want an efficient algorithm. Why didn't you say so? There's a linear-time bottom-up algorithm in Aho, Hopcroft, Ullman's The Design and Analysis of Algorithms. Online I've found it at http://cgm.cs.mcgill.ca/~msuder/courses/250/assignments/5/5.pdf

In reply to Re: Doing all combinations of comparisons between members of 2 lists by Thelonius
in thread Doing all combinations of comparisons between members of 2 lists by PetaMem

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