To evaluate a postfix expression, you need a stream of tokens and a stack that holds tokens. To evaluate an expression like 2 3 +, you read in the tokens one at a time, from left to right, and apply ...
Troy Segal is an editor and writer. She has 20+ years of experience covering personal finance, wealth management, and business news. Skylar Clarine is a fact-checker and expert in personal finance ...
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