Arrays in C (II yr 02.07.2020)

#include <stdio.h>

int main()

{

int arr[5];

// Assume base address of arr is 2000 and size of integer is 32 bit

printf("%u %u", arr + 1, &arr + 1);

return 0;

}

What is the o/p of the program?

• 2004 2020

• 2004 2004

• 2004 Garbage value

• The program fails to compile because Address-of operator cannot be used with array name

#include<stdio.h>

void fun(int **p);

int main()

{

int a[3][4] = {1, 2, 3, 4, 4, 3, 2, 8, 7, 8, 9, 0};

int *ptr;

ptr = &a[0][0];

fun(&ptr);

return 0;

}

void fun(int **p)

{

printf("%d\n", **p);

}

What is the o/p of the program?

• 4

• 3

• 2

• 1

Which of the following statements mentioning the name of the array begins DOES NOT yield the base address?

1:When array name is used with the sizeof operator.

2:When array name is operand of the & operator.

3:When array name is passed to scanf() function.

4:When array name is passed to printf() function.

• 1

• 1,2

• 2

• 2,4

Which of the following statements are correct about an array?

1:The array int num[26]; can store 26 elements.

2:The expression num[1] designates the very first element in the array.

3:It is necessary to initialize the array at the time of declaration.

4:The declaration num[SIZE] is allowed if SIZE is a macro.

• 1

• 1,4

• 2,4

• 2,3

#include <stdio.h>

void main()

{

int a[3] = {1, 2, 3};

int *p = a;

printf("%p\t%p", p, a);

}

In Output,

• Same address is printed

• Different address is printed

• Compile time error

• Nothing

#include <stdio.h>

void foo( int[] );

int main()

{ int ary[4] = {1, 2, 3, 4};

foo(ary);

printf("%d ", ary[0]);

}

void foo(int p[4])

{

int i = 10;

p = &i;

printf("%d ", p[0]);

}

Output of the Program?

• 10 10

• Compile time error

• 10 1

• Undefined behaviour

Which of the following correctly accesses the seventh element stored in foo, an array with 100 elements?

• foo[6];

• foo[7];

• foo(7);

• foo;

Which of the following gives the memory address of the first element in array foo, an array with 100 elements?

• foo[0];

• foo;

• &foo;

• foo[1];

What is the index number of the last element of an array with 29 elements?

• 29

• 28

• 0

• Programmer-defined

Which of the following is a two-dimensional array?

• array anarray[20][20];

• int anarray[20][20];

• int array[20, 20];

• char array[20];