While evaluating a postfix expression, when an operator is encountered, what is the correct operation to be performed?
Admin Staff asked 4 years ago
While evaluating a postfix expression, when an operator is encountered, what is the correct operation to be performed?
a) push it directly on to the stack
b) pop 2 operands, evaluate them and push the result on to the stack
c) pop the entire stack
d) ignore the operator