Exercise 19:

Deterministic uniquely-accepting PDA for {xcyx,y{a,b}xa=yb}\{ xcy \mid x,y\in\{a,b\}^* \wedge |x|_{a}=|y|_{b} \}
Write a deterministic uniquely-accepting PDA recognizing the words of the form xcyxcy, where x,yx,y are words over {a,b}\{a,b\} such that the number of occurrences of aa in xx is equal to the number of occurrences of bb in yy.
Authors: Guillem Godoy / Documentation:
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