Convert the following infix notations to postfix notations, showing stack and string contents at each step.

Q. Convert the following infix notations to postfix notations, showing stack and string contents at each step.

a) A + B - C * D

b) A * (( C + D)/E)

Answer :-

a=
A + B - C * D
(A + B) - ( C * D )
A B + - (C * D)
A B + - C D *
A B + C D * -


b=
A * (( C + D)/E)
A * ( C D + / E)
A * C D + E /
A C D + E / *