Let A 1 * be any unary language. Show that if A is NP-complete, then P
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Let A ⊆ 1* be any unary language. Show that if A is NP-complete, then P = NP. Consider a polynomial time reduction f from SAT to A. For a formula ϕ, let ϕ0100 be the reduced formula where variables x1, x2, x3, and x4 in ϕ are set to the values 0, 1, 0, and 0, respectively. What happens when you apply f to all of these exponentially many reduced formulas?
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