A function f defined on stacks of integers satisfies the following properties.…

GATE · 2005 · IT

A function f defined on stacks of integers satisfies the following properties. f(∅) = 0 and f (push (S, i)) = max (f(S), 0) + i for all stacks S and integers i.

If a stack S contains the integers 2, -3, 2, -1, 2 in order from bottom to top, what is f(S)?

  1. A.

    6

  2. B.

    4

  3. C.

    3

  4. D.

    2

Attempted by 228 students.

Show answer

Correct answer: C

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

Loading lesson…