1
GATE CSE 2024 Set 2
MCQ (Single Correct Answer)
+2
-0.66

Consider the following expression: $x[i] = (p + r) * -s[i] + \frac{u}{w}$. The following sequence shows the list of triples representing the given expression, with entries missing for triples (1), (3), and (6).

(0) + p r
(1)
(2) uminus (1)
(3)
(4) / u w
(5) + (3)(4)
(6)
(7) = (6)(5)

Which one of the following options fills in the missing entries CORRECTLY?

A

(1) = [] s i     (3) * (0) (2)     (6) []= x i

B

(1) []= s i     (3) - (0) (2)     (6) =[] x (5)

C

(1) =[] s i     (3) * (0) (2)     (6) []= x (5)

D

(1) []= s i     (3) - (0) (2)     (6) =[] x i

2
GATE CSE 2024 Set 2
MCQ (More than One Correct Answer)
+2
-0.66

Let S1 and S2 be two stacks. S1 has capacity of 4 elements. S2 has capacity of 2 elements. S1 already has 4 elements: 100, 200, 300, and 400, whereas S2 is empty, as shown below.

Stack S1
400 (Top)
300
200
100
Stack S2

Only the following three operations are available:

PushToS2: Pop the top element from S1 and push it on S2.
PushToS1: Pop the top element from S2 and push it on S1.
GenerateOutput: Pop the top element from S1 and output it to the user.

Note that the pop operation is not allowed on an empty stack and the push operation is not allowed on a full stack.

Which of the following output sequences can be generated by using the above operations?

A

100, 200, 400, 300

B

200, 300, 400, 100

C

400, 200, 100, 300

D

300, 200, 400, 100

3
GATE CSE 2023
Numerical
+2
-0.67

Consider a sequence a of elements $$a_0=1,a_1=5,a_2=7,a_3=8,a_4=9$$, and $$a_5=2$$. The following operations are performed on a stack S and a queue Q, both of which are initially empty.

I: push the elements of a from a$$_0$$ to a$$_5$$ in that order into S.

II: enqueue the elements of a from a$$_0$$ to a$$_5$$ in that order into Q.

III: pop an element from S.

IV: dequeue an element from Q.

V: pop an element from S.

VI: dequeue an element from Q.

VII: dequeue an element from Q and push the same

VIII: Repeat operation VII three times.

IX: pop an element from S.

X: pop an element from S.

The top element of S after executing the above operations is ____________.

Your input ____
4
GATE CSE 2022
Numerical
+2
-0

Consider the queues Q1 containing four elements and Q2 containing none (shown as the Initial State in the figure). The only operations allowed on these two queues are Enqueue (Q, element) and Dequeue (Q). The minimum number of Enqueue operations on Q1 required to place the elements of Q1 in Q2 in reverse order (shown as the Final State in the figure) without using any additional storage is ______________.

GATE CSE 2022 Data Structures - Stacks and Queues Question 5 English

Your input ____
GATE CSE Subjects
Software Engineering
Web Technologies
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12