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












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












$begingroup$


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






share|cite|improve this question













share|cite|improve this question











share|cite|improve this question




share|cite|improve this question










asked Dec 30 '18 at 15:58









Nilgün DağıdırNilgün Dağıdır

11




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










0






active

oldest

votes












Your Answer








StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "69"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3056957%2fneed-a-pda-for-l-an-bm-cm-dn-n-m-1%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes
















draft saved

draft discarded




















































Thanks for contributing an answer to Mathematics Stack Exchange!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


Use MathJax to format equations. MathJax reference.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3056957%2fneed-a-pda-for-l-an-bm-cm-dn-n-m-1%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

mysqli_query(): Empty query in /home/lucindabrummitt/public_html/blog/wp-includes/wp-db.php on line 1924

How to change which sound is reproduced for terminal bell?

Can I use Tabulator js library in my java Spring + Thymeleaf project?