On Thursday 27 October 2005 11:08, Lasse Vågsæther Karlsen wrote: > What I was wondering about is if there is an algorithm that would do > what I want? Ie. help me pick the nodes so as to minimize the number of > edges. To rephrase your question, you want a sorting algorithm that minimises the number of comparisons (because a comparison involves asking a human), and which takes advantage of any pre-existing rough ordering. You need timsort - the algorithm behind python lists sort() method. -- Toby Dickenson -- http://mail.python.org/mailman/listinfo/python-list