Question: Graph theory - Discrete math (a) Let G be a directed graph on a finite vertex set V . Suppose that every vertex of G

Graph theory - Discrete math

(a) Let G be a directed graph on a finite vertex set V . Suppose that every vertex of G has out-degree 1. Show that G has a directed cycle.

(b) For which values of of n, is the complete graph K on n vertices Eulerian?

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