如何构造 L={a^nb^m where n<=m<=2n} 的下推自动机? [英]How to construct a pushdown automata for L={a^nb^m where n<=m<=2n}?
为 L={a^mb^n 其中 n<=m<=2n} 构造一个下推自动机? [英]construct a pushdown automata for L={a^mb^n where n<=m<=2n}?
{ x£ { 0,1 } *| ∉ { 01,10 } * } 证明它是否是正则语言 [英]{ x£ { 0,1 } *| ∉ { 01,10 } * } prove that it is a regular language or not
为什么不能使用下推自动机(PDA)定义以下语言? [英]Why the following language cannot be defined using a Pushdown Automata (PDA)?
L = a^nb^n 的确定性下推自动机 | n >=0) Python 程序 [英]Deterministic Pushdown Automata for L = a^nb^n | n >=0) Python Program
如何显示{w | M_w接受0x且接受1x}语言不是递归语言? [英]How do I show that the language {w|M_w accepts 0x iff it accepts 1x} is not recursive?