Question: Let G be an arbitrary flow network such that the capacity ce of each edge e is a positive even integer. 1 . Prove that

Let G be an arbitrary flow network such that the capacity ce of each edge e is a positive even integer.
1.Prove that the maximum flow value in the network is an even integer.
2.Prove that there exists a maximum flow f such that the flow fe through each edge e is an even integer.

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