Explore topic-wise MCQs in Reversal Array Operation Multiple Choice.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Reversal Array Operation Multiple Choice knowledge and support exam preparation. Choose a topic below to get started.

1.

Predefined function reverse() in C++ is available under which header file?

A. math
B. stdio
C. stdlib
D. algorithm
Answer» E.
Discussion
2.

Which of the following is the predefined function for array reversal in javascript?

A. reverse()
B. arr_reverse()
C. array_reverse()
D. rev()
Answer» B. arr_reverse()
Discussion
3.

Which of the following is the predefined function for array reversal in C++ ?

A. reverse()
B. arr_reverse()
C. array_reverse()
D. rev()
Answer» B. arr_reverse()
Discussion
4.

When array reversal and rotation is applied to the same array then the output produced will also be the same every time.

A. true
B. false
Answer» C.
Discussion
5.

How many swaps are required for reversing an array having n elements where n is an even number?

A. (n-1) / 2
B. n/2
C. (n/2) 1
D. (n+1)/2
Answer» C. (n/2) 1
Discussion
6.

How many swaps are required for reversing an array having n elements where n is an odd number?

A. (n-1) / 2
B. n/2
C. (n/2) 1
D. (n+1)/2
Answer» B. n/2
Discussion
7.

What will be the resulting array after reversing arr[]={3,5,4,2}?

A. 2,3,5,4
B. 4,2,3,5
C. 5,4,2,3
D. 2,4,5,3
Answer» E.
Discussion