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Multidimensional Arrays - Questions and Answers

 

Practice these Multidimensional Arrays under C Programming walk-in interview Questions/ examination questions with best tricks and short cuts with solution. Student (candidate) who want to crack the walk in interview, competitive exams and want to find short cuts and tricks to solve questions on Multidimensional Arrays for following purpose.


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Here is list of Questions and Answers covering all key area of   Multidimensional Arrays topic of C Programming:

 

1.

What is the output of this C code?

  1.     #include <stdio.h>
  2.     void main()
  3.     {
  4.         int a[2][3] = {1, 2, 3, , 4, 5};
  5.         int i = 0, j = 0;
  6.         for (i = 0; i < 2; i++)
  7.         for (j = 0; j < 3; j++)
  8.         printf("%d", a[i][j]);
  9.     }

Answer: Option C

Explanation:

2.

Comment on the 2 arrays regarding P and Q:

  1. int *a1[8];
  2.     int *(a3[8]);
  3.     P. Array of pointers
  4.     Q. Pointer to an array

Answer: Option C

Explanation:

3.

What is the output of this C code?

  1.     #include <stdio.h>
  2.     int main()
  3.     {
  4.         int ary[2][3][4], j = 20;
  5.         ary[0][0] = &j;
  6.         printf("%d\n", *ary[0][0]);
  7.     }

Answer: Option D

Explanation:

4.

What is the output of this C code?

  1.     #include <stdio.h>
  2.     int main()
  3.     {
  4.         int ary[2][3];
  5.         foo(ary);
  6.     }
  7.     void foo(int (*ary)[3])
  8.     {
  9.         int i = 10, j = 2, k;
  10.         ary[0] = &i;
  11.         ary[1] = &j;
  12.         for (k = 0;k < 2; k++)
  13.         printf("%d\n", *ary[k]);
  14.     }

Answer: Option B

Explanation:

5.

What is the correct syntax to send a 3-dimensional array as a parameter?
    (Assuming declaration int a[5][4][3];)

Answer: Option D

Explanation:

6.

What is the output of this C code?

  1.     #include <stdio.h>
  2.     int main()
  3.     {
  4.         foo(ary);
  5.     }
  6.     void foo(int **ary)
  7.     {
  8.         int i = 10, k = 10, j = 2;
  9.         int *ary[2];
  10.         ary[0] = &i;
  11.         ary[1] = &j;
  12.         printf("%d\n", ary[0][1]);
  13.     }

Answer: Option A

Explanation:

7.

What is the output of this C code?

  1.     #include <stdio.h>
  2.     void f(int a[2][])
  3.     {
  4.         a[0][1] = 3;
  5.         int i = 0, j = 0;
  6.         for (i = 0;i < 2; i++)
  7.         for (j = 0;j < 3; j++)
  8.         printf("%d", a[i][j]);
  9.     }
  10.     void main()
  11.     {
  12.         int a[2][3] = {0};
  13.         f(a);
  14.     }

Answer: Option B

Explanation:

8.

What is the output of this C code?

  1.     #include <stdio.h>
  2.     int main()
  3.     {
  4.         int ary[2][3];
  5.         foo(ary);
  6.     }
  7.     void foo(int *ary[])
  8.     {
  9.         int i = 10, j = 2, k;
  10.         ary[0] = &i;
  11.         ary[1] = &j;
  12.         *ary[0] = 2;
  13.         for (k = 0;k < 2; k++)
  14.         printf("%d\n", *ary[k]);
  15.     }

Answer: Option D

Explanation:

9.

Applications of multidimensional array are?

Answer: Option A

Explanation:

10.

What is the output of this C code?

  1.     #include <stdio.h>
  2.     void f(int a[][])
  3.     {
  4.         a[0][1] = 3;
  5.         int i = 0, j = 0;
  6.         for (i = 0;i < 2; i++)
  7.         for (j = 0;j < 3; j++)
  8.         printf("%d", a[i][j]);
  9.     }
  10.     void main()
  11.     {
  12.         int a[2][3] = {0};
  13.         f(a);
  14.     }

Answer: Option A

Explanation:

11.

What is the output of this C code?

  1.     #include <stdio.h>
  2.     void f(int a[][3])
  3.     {
  4.         a[0][1] = 3;
  5.         int i = 0, j = 0;
  6.         for (i = 0; i < 2; i++)
  7.         for (j = 0; j < 3; j++)
  8.         printf("%d", a[i][j]);
  9.     }
  10.     void main()
  11.     {
  12.         int a[2][3] = {0};
  13.         f(a);
  14.     }

Answer: Option D

Explanation:

12.

What is the output of this C code?

  1.     #include <stdio.h>
  2.     void main()
  3.     {
  4.         int a[2][3] = {1, 2, 3, 4, 5};
  5.         int i = 0, j = 0;
  6.         for (i = 0; i < 2; i++)
  7.         for (j = 0; j < 3; j++)
  8.         printf("%d", a[i][j]);
  9.     }

Answer: Option D

Explanation:

13.

What is the output of this C code?

  1.     #include <stdio.h>
  2.     int main()
  3.     {
  4.         int ary[2][3];
  5.         ary[][] = {{1, 2, 3}, {4, 5, 6}};
  6.         printf("%d\n", ary[1][0]);
  7.     }

Answer: Option B

Explanation:

14.

Comment on the following statement:
    int (*a)[7];

Answer: Option C

Explanation:

15.

Which of the following is not possible statically in C?

Answer: Option D

Explanation: