Arrays - Chapter-wise C Programming Objective Questions and Answers

(1)

	int warr[3][2][2]={1,2,3,4,5,6,7,8,9,10,11,12};

What will be the value of warr[2][1][0]?

[A] 5

[B] 7

[C] 9

[D] 11

Comment

Answer: Option [D]

Let us identify the arrays for each values.

warr[0][0][0]=1

warr[0][0][1]=2

warr[0][1][0]=3

warr[0][1][1]=4

warr[1][0][0]=5

warr[1][0][1]=6

warr[1][1][0]=7

warr[1][1][1]=8

warr[2][0][0]=9

warr[2][0][1]=10

warr[2][1][0]=11

(2) Given the piece of code

	int a[50];
	int *pa;
	pa=a;

To access the 6th element of the array which of the following is incorrect?

[A] *(a+5)

[B] a[5]

[C] pa[5]

[D] *(*pa+5)

Comment

Answer: Option [D]

(3) What will be the output of the following code segment?

	int a[10]={1,2,3,4,5,6,7,8,9,10};
	*p=a;
	printf("\n%d:%d", p[7], p[a[7]]);

[A] 7:7

[B] 7:8

[C] 8:9

[D] 8:8

Comment

Answer: Option [C]

The first element of the array i.e. a[0] is assigned by *p=a. Therefore a[0]=1. Then p[7]=8 and p[a[7]]=p[8]=9

Hence 8:9

(4) What is the effect of the following code?

	main()
	{
		int a[4]={1,5};
		printf("%d",a[3]);
	}

[A] 0

[B] Syntax error because of improper initialization

[C] 5

[D] Syntax error because of invalid index

Comment

Answer: Option [A]

Given that int a[4]={1,5}

So a[2], a[3] etc. are 0

(5) For the following definition, which of the given option is correct?

	int a[10];

[A] a++;

[B] a=a+1

[C] *a++

[D] *a[1]

Comment

Answer: Option [C]

*a+0 points to the a[0] location.

Arrays in C Programming - Objective Type Questions with Answers

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Arrays in C Programming - Objective Type Questions with Answers

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