Q. While evaluating a postfix expression, when an operator is encountered, what is the correct operation to be performed?

  • (A) push it directly on to the stack
  • (B) pop 2 operands, evaluate them and push the result on to the stack
  • (C) pop the entire stack
  • (D) ignore the operator
💬 Discuss
✅ Correct Answer: (B) pop 2 operands, evaluate them and push the result on to the stack
Explanation: when an operator is encountered, the first two operands are popped from the stack, they are evaluated and the result is pushed into the stack.

Published by Mr. Dubey ⭐ 111.42K Points at 17-Sep-2023 08:19 am in Information Retrival Techniques

Explanation by: Mr. Dubey
when an operator is encountered, the first two operands are popped from the stack, they are evaluated and the result is pushed into the stack.

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