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(15 points) Given two undirected graphs G1 = (V, E1) and G2 = (V, E2) over the same set of Vertices V and a weight
(15 points) Given two undirected graphs G1 = (V, E1) and G2 = (V, E2) over the same
set of Vertices V and a weight function w : E1 E2 R, let P = {e1, e2, . . . , en} be a
path in (V, E1 E2)
P is an alternating path if for any 1 i < n at least one of the following two conditions
hold:
ei E1, ei+1 E2
ei E2, ei+1 E1
Write a DP algorithm that given G1, G2, returns the weights of the shortest alternating
paths between all pairs of vertices in V .
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