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1

GATE CSE 1994

MCQ (Single Correct Answer)
Which of the following permutations can be obtained in the output (in the same order) using a stack assuming that the input is the sequence 1, 2, 3, 4, 5 in that order?
A
3, 4, 5, 1, 2
B
3, 4, 5, 2, 1
C
1, 5, 2, 3, 4
D
5, 4, 3, 1, 2
2

GATE CSE 1991

MCQ (Single Correct Answer)
The following sequence of operations is performed on stack: PUSH (10),PUSH (20),POP,PUSH (10),PUSH (20),POP,POP,POP,PUSH (20),POP The sequence of the value popped out is:
A
20,10,20,10,20
B
20,20,10,10,20
C
10,20,20,10,20
D
20,20,10,20,10
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