Question: . Let V and E be sets with |V | = n and |E| = m. (a) How many digraphs have vertex set V

. Let V and E be sets with |V | = n

. Let V and E be sets with |V | = n and |E| = m. (a) How many digraphs have vertex set V and edge set E? (b) How many graphs have vertex set V and edge set E?

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