1
GATE CSE 2021 Set 1
MCQ (Single Correct Answer)
+1
-0.33

Consider the following three functions.

f1 = 10n, f2 = nlogn, f3 = n√n

Which one of the following options arranges the functions in the increasing order of asymptotic growth rate?

A
f1 , f2, f3
B
f2, f1, f3
C
f3, f2, f1
D
f2, f3, f1
2
GATE CSE 2021 Set 1
MCQ (Single Correct Answer)
+1
-0.33

Consider the following array.

23

32

45

69

72

73

89

97


Which algorithm out of the following options uses the least number of comparisons (among the array elements) to sort above array in ascending order?
A
Insertion sort
B
Selection sort
C
Quicksort using the last element as pivot
D
Merge sort
3
GATE CSE 2021 Set 1
MCQ (Single Correct Answer)
+1
-0.33
A binary search tree T contains n distinct elements. What is the time complexity of picking an element in T that is smaller than the maximum element in T?
A
Θ(1)
B
Θ(n log n)
C
Θ(log n)
D
Θ(n)
4
GATE CSE 2021 Set 1
MCQ (Single Correct Answer)
+2
-0.67

Consider the following recurrence relation.

$$T(n) = \left\{ {\begin{array}{*{20}{c}} {T(n/2) + T(2n/5) + 7n \ \ \ if\ n > 0}\\ {1\ \ \ \ \ \ \ if\ n = 0} \end{array}} \right.$$

Which one of the following option is correct?

A
T(n) = Θ(n log n)
B
T(n) = Θ(n5/2)
C
T(n) = Θ((log n)5/2)
D
T(n) = Θ(n)
EXAM MAP