Question $26$

Assume that the operators,,$+-$ are left associative and ${?}^{{?}^{?}}$ is right associative. The order of precedence $($from highest to lowest$)$ is ${?}^{{?}^{?}},x,+,-.$ The postfix expression corresponding to the infix expression $a+bc-d^{{?}^{{?}^{?}}}{e}^{{?}^{{?}^{?}}}f$ is

Your answer:

$-+ab{c}^{{?}^{?}}{?}^{{?}^{?}}$ def

$abc+de{f}^{{?}^{?}}{?}^{{?}^{?}}-$

$abc+d{e}^{{?}^{?}}{f}^{{?}^{?}}-$

$ab+cd-e^{{?}^{{?}^{?}}}{f}^{{?}^{?}}$

Clear answer