What is the postfix form of the infix expression A + B?

Options

  • A. AB+
  • B. +AB
  • C. A+B
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

A. AB+

Detailed Explanation

In postfix notation, the operator is placed after its operands. Therefore, the infix expression A + B becomes AB+. Postfix notation does not require parentheses to determine the order of operations because the position of each operator explicitly determines which operands it uses. Conversion between infix, prefix, and postfix expressions is an important stack-based topic in Data Structures and is frequently tested through simple arithmetic expressions.
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