Which of the following can accept even palindrome over {a,b}ans.Push down AutomataNDFATuring machineAll of the mentioned Previous Marked for Review Next
Question
Which of the following can accept even palindrome over {a,b}ans.Push down AutomataNDFATuring machineAll of the mentioned Previous Marked for Review Next
Solution
All of the mentioned options can accept even palindrome over {a,b}.
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Push Down Automata (PDA): A PDA can accept even palindrome over {a,b} by pushing the first half of the string onto its stack and then comparing it with the second half of the string.
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Non-deterministic Finite Automaton (NDFA): An NDFA can accept even palindrome over {a,b} by guessing the midpoint of the string and then checking if the string is a palindrome.
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Turing Machine: A Turing machine can accept even palindrome over {a,b} by scanning the input string from both ends towards the middle, comparing the symbols at both ends. If they are the same, it continues with the next pair of symbols, and so on. If it finds a pair of symbols that are not the same, it rejects the string. If it scans the entire string and all pairs of symbols are the same, it accepts the string.
So, all of the mentioned machines can accept even palindrome over {a,b}.
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