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If those commercial options are not available, then every other option needs to be considered, including using ADF assets to repatriate Australians if that’s necessary.
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The complexity of determining the minimum number of flips that transform one triangulation of a convex point set into another remained a tantalizing open question for many decades. We settle this question by proving that computing shortest flip sequences between triangulations of convex polygons, and therefore also computing the rotation distance of binary trees, is NP-hard.
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