Single Dimensional Array - Quiz

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

  • A2
  • B10
  • C20
  • DTheoratically no limit. The only practical limits are memory size and compilers.

Size of the array need not be specified, when

  • AInitialization is a part of definition
  • BIt is a declaratrion
  • CIt is a formal parameter
  • DAll of these

What will be the output of the following program? 

void main()
{
      char str1[] = "abcd";
      char str2[] = "abcd";
      if(str1==str2)
            printf("Equal");
      else
            printf("Unequal");
}

  • AEqual
  • BUnequal
  • CError
  • DNone of these.

What does the following declaration mean? int (*ptr)[10];

  • Aptr is array of pointers to 10 integers
  • Bptr is a pointer to an array of 10 integers
  • Cptr is an array of 10 integers
  • Dptr is an pointer to array

What will be the output of the program? 

#include<stdio.h>
int main()
{
    int arr[1] = {10};
    printf("%d", 0[arr]);
    return 0;
}

  • A1
  • C10
  • D None of these

What will be the output of the program if the array begins at address 65486? 

#include<stdio.h>
void main()
{
    int arr[] = {12, 14, 15, 23, 45};
    printf("%u, %u", arr, &arr);
}

  • A65486, 65488
  • B65486, 65490
  • C65486, 65487
  • D65486, 65486

What will be the output of the program? 

#include<stdio.h>
void main()
{
    float arr[] = {12.4, 2.3, 4.5, 6.7};
    printf("%d", sizeof(arr)/sizeof(arr[0]));
}

  • A5
  • B4
  • C6
  • Dno output

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

#include<stdio.h>
void main()
{
    int a[3][4];
    fun(a);
}

  • Avoid fun(int p[][4]){}
  • Bvoid fun(int *p[4]){}
  • Cvoid fun(int *p[][4]){}
  • Dvoid fun(int *p[3][4]){}

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

#include<stdio.h>
void main()
{
    int size, i;
    scanf("%d", &size);
    int arr[size];
    for(i=1; i<=size; i++)
    {
        scanf("%d", arr[i]);
        printf("%d", arr[i]);
    }
}

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

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.

  • A1
  • B1, 4
  • C2, 3
  • D2, 4

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