regular language pumping lemma for string with even 0's -


find whether string number of zeros a) context free b)regular

a) using pumping lemma cfl....it can represented e(0n)e(0n)e. , it's cfl.

b) can represented (00)* in regex. so, think it's regular language. but, not able prove same using pumping lemma regular languages

any appreciated. thanks!!


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