PDA for equal number of a's and b's | Pushdown Automata | Automata Theory | TOC
Автор: TopGATE
Загружено: 2023-03-31
Просмотров: 3810
If ‘a’ comes first then push it in stack and if again ‘a’ comes then also push it. Similarly, if ‘b’ comes first (‘a’ did not comes yet) then push it into the stack and if again ‘b’ comes then also push it.
Now, if ‘a’ is present in the top of the stack and ‘b’ comes then pop the ‘a’ from the stack. And if ‘b’ present in the top of the stack and ‘a’ comes then pop the ‘b’ from the stack.
So, at the end if the stack becomes empty then we can say that the string is accepted by the PDA.
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