Basic Calculator
Explore how to implement a basic calculator that evaluates arithmetic expressions containing integers, plus and minus operators, and parentheses. Learn to use stacks to process each character, handle unary minus, and compute results without Python's eval function. This lesson guides you through parsing expressions and applying stack operations to develop a robust calculator solution.
We'll cover the following...
We'll cover the following...
Statement
Given a string containing an arithmetic expression, implement a basic calculator that evaluates the expression string. The expression string can contain integer numeric values and should be able to handle the “+” and “-” operators, as well as “()” parentheses.
Constraints:
Let ...