Question: In the k-Flow problem, you are given a graph G = (V, E), an integer k, a source s V , and a sink t

In the k-Flow problem, you are given a graph G = (V, E), an integer k, a source s V , and a sink t V . You are wondering if there is a flow from s to t of value k.

(a) Show that k-Flow is in NP.

(b) Your fellow student claims to have a proof that k-Flow is NP-Complete. If correct, this would mean that Network Flow is NP-Complete. What would be the implications if their proof is correct?

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