Need a PDA for L={ a^n b^m c^m d^n n,m>=1 }












0












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I am trying to desing a PDA for automata lecture.Language is L={ a^n b^m c^m d^n n,m>=1 }



    δ(q0, a, Z) = (q0, aZ)            
δ(q0, a, a) = (q0, aa)
δ(q0, b, a) = (q1, ba)
δ(q1, b, b) = (q1, bb)
δ(q1, c, b) = (q2, ε)
δ(q2, c, b) = (q2, ε)
δ(q2,d , a) = (q3, ε)
δ(q3, d, a) = (q4, ε)
δ(q4, ε, Z) = (q4, Z)


States are q0,q1,q2,q3,q4.Z means empty stack.ε means push nothing to the stack.And q4 is final state.I designed it that way but i am not sure if it is correct.Can you check the answer and help me to fix it?










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  • $begingroup$
    Seems correct if you ask me.
    $endgroup$
    – Wuestenfux
    Dec 31 '18 at 12:08
















0












$begingroup$


I am trying to desing a PDA for automata lecture.Language is L={ a^n b^m c^m d^n n,m>=1 }



    δ(q0, a, Z) = (q0, aZ)            
δ(q0, a, a) = (q0, aa)
δ(q0, b, a) = (q1, ba)
δ(q1, b, b) = (q1, bb)
δ(q1, c, b) = (q2, ε)
δ(q2, c, b) = (q2, ε)
δ(q2,d , a) = (q3, ε)
δ(q3, d, a) = (q4, ε)
δ(q4, ε, Z) = (q4, Z)


States are q0,q1,q2,q3,q4.Z means empty stack.ε means push nothing to the stack.And q4 is final state.I designed it that way but i am not sure if it is correct.Can you check the answer and help me to fix it?










share|cite|improve this question









$endgroup$












  • $begingroup$
    Seems correct if you ask me.
    $endgroup$
    – Wuestenfux
    Dec 31 '18 at 12:08














0












0








0


0



$begingroup$


I am trying to desing a PDA for automata lecture.Language is L={ a^n b^m c^m d^n n,m>=1 }



    δ(q0, a, Z) = (q0, aZ)            
δ(q0, a, a) = (q0, aa)
δ(q0, b, a) = (q1, ba)
δ(q1, b, b) = (q1, bb)
δ(q1, c, b) = (q2, ε)
δ(q2, c, b) = (q2, ε)
δ(q2,d , a) = (q3, ε)
δ(q3, d, a) = (q4, ε)
δ(q4, ε, Z) = (q4, Z)


States are q0,q1,q2,q3,q4.Z means empty stack.ε means push nothing to the stack.And q4 is final state.I designed it that way but i am not sure if it is correct.Can you check the answer and help me to fix it?










share|cite|improve this question









$endgroup$




I am trying to desing a PDA for automata lecture.Language is L={ a^n b^m c^m d^n n,m>=1 }



    δ(q0, a, Z) = (q0, aZ)            
δ(q0, a, a) = (q0, aa)
δ(q0, b, a) = (q1, ba)
δ(q1, b, b) = (q1, bb)
δ(q1, c, b) = (q2, ε)
δ(q2, c, b) = (q2, ε)
δ(q2,d , a) = (q3, ε)
δ(q3, d, a) = (q4, ε)
δ(q4, ε, Z) = (q4, Z)


States are q0,q1,q2,q3,q4.Z means empty stack.ε means push nothing to the stack.And q4 is final state.I designed it that way but i am not sure if it is correct.Can you check the answer and help me to fix it?







automata context-free-grammar






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asked Dec 30 '18 at 15:58









Nilgün DağıdırNilgün Dağıdır

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11












  • $begingroup$
    Seems correct if you ask me.
    $endgroup$
    – Wuestenfux
    Dec 31 '18 at 12:08


















  • $begingroup$
    Seems correct if you ask me.
    $endgroup$
    – Wuestenfux
    Dec 31 '18 at 12:08
















$begingroup$
Seems correct if you ask me.
$endgroup$
– Wuestenfux
Dec 31 '18 at 12:08




$begingroup$
Seems correct if you ask me.
$endgroup$
– Wuestenfux
Dec 31 '18 at 12:08










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