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in Data Structures & Algorithms I by (110k points)
From the given Expression tree, identify the correct postfix expression from the list of options.

(a) ab*cd*+

(b) ab*cd-+

(c) abcd-*+

(d) ab*+cd-

The origin of the question is Application of Stacks in division Application of Stacks of Data Structures & Algorithms I

This question was posed to me in semester exam.

1 Answer

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The correct option is (b) ab*cd-+

For explanation: From the given expression tree, the infix expression is found to be (a*b)+(c-d). Converting it to postfix, we get, ab*cd-+.

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