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GATE | GATE 2017 MOCK II | Question 23

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  • Last Updated : 28 Jun, 2021
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Considering the data given in the previous question, if the stack A had 4 entries, then the number of possible permutations that can be printed will be:

(A) 24
(B) 12
(C) 21
(D) 14


Answer: (D)

Explanation: rsz_stack

rsz_stack2

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