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{XWWrY} is regular or not?

XYW € (0,1)+
asked in Theory of Computation by (43 points) 5 | 59 views
Is it equivalent to  * r * ? Then it will be regular.

yes, it is regular...

its corresponding regular expression is: (0+1)^+00(0+1)^+  +  (0+1)^+11(0+1)^+

you language accept a language which contain either 00 or 11 as substring. Nothing can be infere from given problem about this condition.

Take examples of strings, u will get it its actual meaning why I wrote that regular expression.
00 is accepted by given regular expression, does it belong to grammer..
Chandan u r right!!

I have updated answer..

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