Question: I am attempting to use a Network Simplex to solve for the maximal flow. However, I am having difficulty implementing the problem in AMPL. If

I am attempting to use a Network Simplex to solve

I am attempting to use a Network Simplex to solve for the maximal flow. However, I am having difficulty implementing the problem in AMPL. If a general model file could be provided, that would be great.

i) Present a detailed step-by-step approach of your general algorithm/heurisitic where the number of nodes in the planar network can be larger than two nodes. ii) Demonstrate your approach for finding the maximal flow on the following example. 15 40 S1 1 3 (di 12 10 10 5 S2 2 20 4 d2 15 Two commodity Planar Network

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