The language L where a string W is a combination of Comm B Star, and W is the reverse of the string.
Create a PDA to match the input with the reverse, push and pop symbols accordingly.
Ensure every C encountered pops out an A, and replace each C with an A.
Transition to the final state when the stack is empty. ๐๐๐ต๐ดโฉ๐
# Problems from Push Down Automata #2
## Designing the PDA for L
In this question, we have to design a PDA for the language L, where the string W is a combination of a Comm B Star and the reverse of string W. Initially, if the input string is just beginning and the stack is empty, the PDA should insert z0. Whenever the input symbol matches with the top of the stack, the PDA should push and pop symbols accordingly to check whether the given string and its reverse are present in the language.
## Constructing a PDA for Language L
In this question, we are required to construct a PDA that accepts the language L, where the input string consists of a specific pattern of a’s and b’s. The PDA should push and pop symbols in a specific sequence to accurately check for the presence of the given pattern in the language.
## Verifying the Language
Another aspect to consider is the concept of encountering ‘C’ and ‘N’ a specific number of times, and ensuring that the PDA inserts and pops symbols according to the given conditions to correctly verify the language.
## Transitioning States
The process of transitioning between states in the PDA involves inserting and popping symbols based on specific conditions, while ensuring that the correct transitions are made to check for the presence of the input pattern in the language.
## Finalizing the Transition Functions
To successfully verify the input string, it is essential to define the transition functions in a manner that accurately reflects the rules and conditions specified for the language L, allowing the PDA to accurately determine the acceptance of the string.
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