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in Data Structures & Algorithms I by (110k points)
Which of the following is an example for a postfix expression?

(a) a*b(c+d)

(b) abc*+de-+

(c) +ab

(d) a+b-c

My question comes from Application of Stacks topic in chapter Application of Stacks of Data Structures & Algorithms I

I have been asked this question by my school principal while I was bunking the class.

1 Answer

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Best answer
The correct option is (b) abc*+de-+

For explanation: abc*+de-+ is a postfix expression. +ab is a prefix expression and others are infix expressions.

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