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Karen has a new way to do path compression in a tree based union find partition data structure starting at a position p She puts all the positions that are on the path from p to the root in a set

Karen has a new way to do path compression in a tree-based union/find partition data structure starting at a position p. She puts all the positions that are on the path from p to the root in a set S. Then she scans through S and sets the parent pointer of each position in S to its parent’s parent pointer (recall that the parent pointer of the root points to itself). If this pass changed the value of any position’s parent pointer, then she repeats this process, and goes on repeating this process until she makes a scan through S that does not change any position’s parent value. Show that Karen’s algorithm is correct and analyze its running time for a path of length h.

Jun 11 2020 View more View Less

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