question based on array

Que – 1. Predict output of following program

int main()
{
    int i;
    int arr[5] = {1};
    for (i = 0; i < 5; i++)
        printf("%d ", arr[i]);
    return 0;
}

(A) 1 followed by four garbage values:
(B) 1 0 0 0 0
(C) 1 1 1 1 1
(D) 0 0 0 0 0

Que - 2. Predict output of the following program:

int main()
{
    int a[][] = {{1,2},{3,4}};
    int i, j;
    for (i = 0; i < 2; i++)
        for (j = 0; j < 2; j++)
            printf("%d ", a[i][j]);
    return 0;
}

(A) 1 2 3 4
(B) Compiler Error in line ” int a[][] = {{1,2},{3,4}};”
(C) 4 garbage values
(D) 4 3 2 1

Que - 3. Consider the following declaration of a ‘two-dimensional array in C:

char a[100][100];

Assuming that the main memory is byte-addressable and that the array is stored starting from memory address 0, the address of a[40][50] is: (GATE CS 2002)
(A) 4040
(B) 4050
(C) 5040
(C) 5050

Que - 4. For a C program accessing X[i][j][k], the following intermediate code is generated by a compiler. Assume that the size of an integer is 32 bits and the size of a character is 8 bits. (GATE-CS-2014)

t0 = i * 1024
t1= j * 32
t2 = k * 4
t3 =t1 + t0
t4 = t3 + t2
t5 = X[t4]

Which one of the following statement about the source code of C program is correct?
(A) X is declared as “int X[32][32][8]”
(B) X is declared as “int X[4][1024][32]”
(C) X is declared as “char X[4][32][8]”
(D) X is declared as “char X[32][16][2]”

int *A [10], B[10][10];  

Of the following expressions

I. A[2]
II. A[2][3]
III. B[1]
IV. B[2][3]

which will not give compile-time errors if used as left hand sides of assignment statements in a C program (GATE CS 2003)?
(A) I, II, and IV only
(B) II, III, and IV only
(C) II and IV only
(D) IV only