Structure and Union MCQs

What will be the output of the following C code?

#include <stdio.h>
struct point
{
    int x;
    int y;
};
void foo(struct point*);
int main()
{
    struct point p1[] = {1, 2, 3, 4, 5};
    foo(p1);
}
void foo(struct point p[])
{
    printf("%d %d\n", p->x, p[3].y);
}

What will be the output of the following C code?

#include <stdio.h>
void main()
{
    char *a[3][3] = {{"hey", "hi", "hello"}, {"his", "her", "hell"}
    , {"hellos", "hi's", "hmm"}};
    printf("%s", a[1][1]);
}

What will be the output of the following C code?

#include <stdio.h>
union u
{
    struct
    {
        unsigned char x : 2;
        unsigned int y : 2;
    }p;
    int x;
};
int main()
{
    union u u = {2};
    printf("%d\n", u.p.x);
}

What will be the output of the following C code?

#include <stdio.h>
struct p
{
    int k;
    char c;
};
int p = 10;
int main()
{
    struct p x;
    x.k = 10;
    printf("%d %d\n", x.k, p);
}

What will be the output of the following C code?

#include <stdio.h>
struct p
{
    char *name;
    struct p *next;
};
struct p *ptrary[10];
int main()
{
    struct p p;
    p.name = "xyz";
    p.next = NULL;
    ptrary[0] = &p
    printf("%s\n", ptrary[0]->name);
    return 0;
}

What will be the output of the following C code?

#include <stdio.h>
struct p
{
    char *name;
    struct p *next;
};
struct p *ptrary[10];
int main()
{
    struct p p;
    p->name = "xyz";
    p->next = NULL;
    ptrary[0] = &p
    printf("%s\n", p->name);
    return 0;
}

In the following C code, we can access the 1st character of the string sval by using . . . . . .

#include <stdio.h>
struct
{
    char *name;
    union
    {
        char *sval;
    } u;
} symtab[10];

. .

What will be the output of the following C code?

#include <stdio.h>
struct point
{
    int x;
    int y;
};
struct notpoint
{
    int x;
    int y;
};
int main()
{
    struct point p = {1};
    struct notpoint p1 = p;
    printf("%d\n", p1.x);
}

What will be the output of the following C code?

#include <stdio.h>
struct student
{
    char *c;
};
void main()
{
    struct student m;
    struct student *s = &m
    s->c = "hello";
    printf("%s", m.c);
}