1.

Let be the encoding of a Turing machine as a string over ∑= {0, 1}. Let L = { |M is a Turing machine that accepts a string of length 2014 }. Then, L is

A. decidable and recursively enumerable
B. undecidable but recursively enumerable
C. undecidable and not recursively enumerable
D. decidable but not recursively enumerable
Answer» C. undecidable and not recursively enumerable


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