Pointer MCQs

What are the elements present in the array of the following C code?

int array[5] = {5};

What will be the output of the following C code?

#include <stdio.h>
struct student
{
    int no;
    char name[20];
};
void main()
{
    student s;
    s.no = 8;
    printf("hello");
}

What will be the output of the following C code?

#include <stdio.h>
void foo(float *);
int main()
{
    int i = 10, *p = &i
    foo(&i);
}
void foo(float *p)
{
    printf("%f\n", *p);
}

What will be the output of the following C code?

#include <stdio.h>
void main()
{
    char *a[10] = {"hi", "hello", "how"};
    int i = 0, j = 0;
    a[0] = "hey";
    for (i = 0;i < 10; i++)
    printf("%s\n", a[i]);
}

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

What will be the output of the following C code?

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

Which of following logical operation can be applied to pointers?(Assuming initialization int *a = 2; int *b = 3;)

What will be the output of the following C code?

#include <stdio.h>
void main()
{
    int k = 5;
    int *p = &k
    int **m  = &p
    printf("%d%d%d\n", k, *p, **m);
}

What are the different ways to initialize an array with all elements as zero?