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At 8:13pm on November 8, 2013, + !♥ A VU GROUP ♥! + said…

Welcome to Join VU Students Community of Virtual University's largest social network .We hope you & we all will be well benefited by study materials shared by all of us...we are waiting for your contributions also.thanx.

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At 10:18pm on November 21, 2012, HANZALA said…

slam dear aap kia hal ha?

At 6:52am on November 15, 2012, +cool Bajwa said…

Welcome HUMMA on ning

At 12:28pm on November 11, 2012, ASAM said…



same to you

At 3:57pm on November 3, 2012, + !♥ A VU GROUP ♥! + said…

here is the idea solution of cs 402

bt some of the diagrams can't paste here

We draw a Finite Automaton (FA) in the following manner: The machine’s states are represented by circles and transitions are represented by  arrows.  Every transition is marked by a symbol from the alphabet .  The start state is marked by  a – sign  and the final states are marked by a sign as shown in the FA for   a* b a*.


We draw another  finite automaton which accepts all strings from  a*bb*a a*(b a*bb*a a*)*.

The Transition graph that accepts only the empty word is,

Now by reversing an edge of "a" the above transition graph accepts the languagea*

            The resultant TG is



At 1:16pm on November 3, 2012, + !♥ A VU GROUP ♥! + said…

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