Choose the correct alternatives (more than one may be correct) and write the…

GATE · 1991 · CS · Question 3 subparts

Choose the correct alternatives (more than one may be correct) and write the corresponding letters only. The following sequence of operations is performed on a stack:

PUSH (10), PUSH (20), POP, PUSH (10), PUSH (20), POP, POP, POP, PUSH (20), POP

The sequence of values 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

Attempted by 670 students.

Show answer

Correct answer: B

The worked solution is available to enrolled students.

Video solution available to enrolled students.

Explore the full course: Iocl Engineers Officers Grade A Paper 2