Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Programming and Data Structure Stack
The following operations are performed on empty stack - push (5), push (2), pop, push (7), push (2), pop, pop, push (9) pop, push (4), pop , the sequence of values that were popped out are
1
2 7 9 4 2
2
2 2 7 9 4
3
2 2 4 9 7
4
More than one of the above
5
None of the above