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GATE | GATE CS 2011 | Question 27

  • Last Updated : 28 Jun, 2021

Consider two binary operators ‘\uparrow ‘ and ‘\downarrow‘ with the precedence of operator \downarrow being lower than that of the \uparrow operator. Operator \uparrow is right associative while operator \downarrow is left associative. Which one of the following represents the parse tree for expression (7 \downarrow 3 ­\uparrow 4 ­\uparrow 3 \downarrow 2)?


(A) A
(B) B
(C) C
(D) D


Answer: (B)

Explanation: See question 3 of https://www.geeksforgeeks.org/data-structures-and-algorithms-set-27/

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