Combinations Vs. Permutations on Linux and Unix
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Here's a little something to finish the week off and tie up some loose ends. You may have noticed in our Perl script to maximize guaranteed matches in any give number pool that we did all of our work using permutations, which we then went through the trouble of sorting and removing duplicates. Probably a few people out there were thinking: "Why permutations if 1,2,3 and 3,1,2 are going to be considered equal? Isn't that just a bunch of extra work?" The answers to those questions are "why not" and "yes" ;)
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