下推自动机 (PDA) 是包含子串 bbb 的 PDA 的补集步骤制作接受包含 bbb 的字符串的 PDA。通过将不接受的设为接受,反之亦然,对其进行补充。构造 PDACan you construct the PDA as shown below for the (a, b)* languageThe nature of transition format is Input, Top of stack, PUSH/POPExamplea ,a , aa means on i/p a and top of stack is a then push aAt q0 i, e initial if a or b anything came move state to q1Till q1 we get 1 b to make substring b_ _ so now on q1 if ... 阅读更多