Question: Monotonic shortest path. Given a weighted digraph, find a monotonic shortest path from s to every other vertex. A path is monotonic if the weight

Monotonic shortest path. Given a weighted digraph, find a monotonic shortest path from s to every other vertex. A path is monotonic if the weight of every edge on the path is either strictly increasing or strictly decreasing. The path should be simple (no repeated vertices). Hint : Relax edges in ascending order and find a best path; then relax edges in descending order and find a best path.

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