In the postfix expression evaluation example, the two most recent operands are popped when an operator is encountered so that the subexpression can be evaluated. The first operand popped is treated as the second operand in the subexpression, and the second operand popped is the first. Give and explain an example that demonstrates the importance of this aspect of the solution.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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 In the postfix expression evaluation example, the two most recent
operands are popped when an operator is encountered so that
the subexpression can be evaluated. The first operand popped
is treated as the second operand in the subexpression, and the
second operand popped is the first. Give and explain an example
that demonstrates the importance of this aspect of the solution.

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