The set of all strings over ∑ = {a,b} in which all strings having bbbb as substring is?
Posted: Thu Jul 14, 2022 9:07 am
a) (a+b)* bbbb (a+b)*
b) (a+b)* bb (a+b)*bb
c) bbb(a+b)*
d) bb (a+b)*
b) (a+b)* bb (a+b)*bb
c) bbb(a+b)*
d) bb (a+b)*