Test: Arrays - 1 - Back-End Programming MCQ

Which of the following accesses the seventh element stored in array?

What will be the output of the following code?

#include"stdio.h"
void main()
{
      int a[10];
      printf("%d %d", a[-1], a[12]);
}

Assume the following C variable declaration
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)?

What is the output of this program?

#include < stdio.h >

using namespace std;

int main()

{

int array[] = {10, 20, 30};

cout << -2[array];

return 0;

}

What is the maximum number of dimensions an array in C may have?

Predict the output of the below program:

#include <stdio.h>
#define SIZE(arr) sizeof(arr) / sizeof(*arr);

void fun(int* arr, int n)

{
    int i;
    *arr += *(arr + n - 1) += 10;
}

void printArr(int* arr, int n)

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

int main()

{

    int arr[] = {10, 20, 30};
    int size = SIZE(arr);
    fun(arr, size);
    printArr(arr, size);
    return 0;

}

What is the index number of the last element of an array with 9 elements?