regex - Regular Expression for Automata for Strings that do not end in 01 -



regex - Regular Expression for Automata for Strings that do not end in 01 -

automata strings not end 01.

i cannot obtain regular look automata alphabet={0,1} generates strings not end 01.

here state diagram:

state diagram

i state diagram visual automata simulator tool matthew mcclintock, tested strings empty string e, "0","1","00","10","11" , ones not end 01, , seems work.

can help me obtain regular expression?. didn't have formal introduction computer automata theory, barely understand concepts of dfa,nfa , nomenclature kind of unusual me.

i tried obtained regexp, 1 was:

(0+1)*(00+10+11)

but no sure if correct.

then according diagram have tried things like:

1*(00*1+0+0*1)*+1(00*1+0*1)*

or things that. know can test regular expressions?

as said in comments, pretty close in first attempt. should work:

(0+1)*(00+10+11)+0+1+ε

or, in programmer dialect,

^([01]*(00|10|11)|0|1|)$

edit: give thanks nhahtdh, indeed had.

regex automata dfa

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