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Question

how can we solve such type of question?

 

Comments

no .

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Proper method is to find what exactly each production do. Try to write more and more cfg you will come to know how production work

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Figure out what each productions do.

 

A headed productions gives random number of 0s...

B headed productions gives 1^j 2^k where k<= j etc. Do this for all productions.

This gives answer c