Question: The baseball card collector problem is as follows: Given packets P1, P2, . . . , PM, each of which contains a subset of the

The baseball card collector problem is as follows: Given packets P1, P2, . . . , PM, each of which contains a subset of the year's baseball cards, and an integer K, is it possible to collect all the baseball cards by choosing ≤ K packets? Show that the baseball card collector problem is NP-complete.

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