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The following turing machine acts like:(a) Copies a string(b) Delete a symbol(c) Insert a symbol(d) None of the mentionedThis question was posed to me in an interview for job.My question is based upon Introduction to Turing Machines topic in portion Introduction to Turing Machines of Automata Theory

Answer»

The correct answer is (b) Delete a symbol

Easiest explanation: A turing machine does the deletion by CHANGING the tape contents from yaz to YZ, where y BELONGS to (S U {#})*.



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