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Challenge: Evaluate Postfix Expression Using a Stack

Explore how to evaluate arithmetic expressions in postfix notation using a stack. This lesson helps you implement a method to handle operators and operands step-by-step, returning the correct integer result for valid postfix expressions.

We'll cover the following...

Statement

Given a string, exp, represents an arithmetic expression in a postfix notationpostfix. Evaluate exp and return the resulting integer value.

The rules are given below:

  • The valid operators are '+''-''*', and '/'.

  • Each operand may be an integer or another expression.

  • The division ...