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/Solution: Evaluate Postfix Expression Using a Stack
Solution: Evaluate Postfix Expression Using a Stack
Let’s solve the Evaluate Postfix Expression Using a Stack problem.
We'll cover the following...
Statement
Given a string, exp, represents an arithmetic expression in a
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 between two integers always truncates toward zero.
There will not be any division by zero.
The input represents a valid arithmetic expression in a postfix notation.
The answer and all the intermediate calculations can be represented in a 32-bit integer.
Each digit is considered to be a separate number, i.e., there are no double digit numbers.
Constraints:
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