C Programming - Arrays

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Exercise

"Act well your part; there all honor lies."

- Alexander Pope

Which of the following is correct way to define the function fun() in the below program?

#include<stdio.h>

int main()
{
    int a[3][4];
    fun(a);
    return 0;
}

A.	`void fun(int p[][4]) { }`	B.	`void fun(int *p[4]) { }`
C.	`void fun(int *p[][4]) { }`	D.	`void fun(int *p[3][4]) { }`

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.

A.	A	B.	A, B
C.	B	D.	B, D

Which of the following statements are correct about the program below?

#include<stdio.h>

int main()
{
    int size, i;
    scanf("%d", &size);
    int arr[size];
    for(i=1; i<=size; i++)
    {
        scanf("%d", arr[i]);
        printf("%d", arr[i]);
    }
    return 0;
}

A.	The code is erroneous since the subscript for array used in for loop is in the range 1 to size.
B.	The code is erroneous since the values of array are getting scanned through the loop.
C.	The code is erroneous since the statement declaring array is invalid.
D.	The code is correct and runs successfully.

Which of the following statements are correct about 6 used in the program?
int num[6];
num[6]=21;

A.	In the first statement 6 specifies a particular element, whereas in the second statement it specifies a type.
B.	In the first statement 6 specifies a array size, whereas in the second statement it specifies a particular element of array.
C.	In the first statement 6 specifies a particular element, whereas in the second statement it specifies a array size.
D.	In both the statement 6 specifies array size.

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.

A.	1	B.	1,4
C.	2,3	D.	2,4