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GATE | GATE 2017 MOCK II | Question 22
Linked Questions 22-23
Stack A has the entries as following sequence a, b, c (with ‘a’ on top), stack B is empty, as shown in the diagram below.
An entry popped out of stack A can be printed or pushed to stack B. An entry popped out of stack B can only be printed.
In this arrangement which of the following permutation of a, b, c are not possible to print?
Stack A has the entries as following sequence a, b, c (with ‘a’ on top), stack B is empty, as shown in the diagram below.
An entry popped out of stack A can be printed or pushed to stack B. An entry popped out of stack B can only be printed.
In this arrangement which of the following permutation of a, b, c are not possible to print?
(i) bac (ii) bca (iii) cab (iv) abc
(A)
(i), (ii) and (iii)
(B)
(iv) Only
(C)
(iii) Only
(D)
(ii) and (iii) Only
Answer
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