In the algorithm to evaluate a postfix expression, what does the algorithm do when an operator is encountered?
A) pop the resulting value from the stack
B) push the preceding operands onto the stack
C) apply the operator to the two preceding operands
D) push the operator onto the stack

Question

Quizplus · Accepted Answer

When an operator is encountered in the postfix expression, the algorithm pops the two preceding operands from the stack, applies the operator to them, and then pushes the resulting value back onto the stack. This process continues until the entire postfix expression has been evaluated. Therefore, the correct choice is C as it applies the operator to the two preceding operands.

In the Algorithm to Evaluate a Postfix Expression, What Does