Structure and Union - C Programming MCQ Questions and Answers

#include <stdio.h>
struct p
{
    int k;
    char c;
    float f;
};
int main()
{
    struct p x = {.c = 97, .k = 1, 3};
    printf("%f \n", x.f);
}

#include <stdio.h>
struct student
{
    int no = 5;
    char name[20];
};
void main()
{
    struct student s;
    s.no = 8;
    printf("hello");
}

#include <stdio.h>
struct student
{
    char *name;
};
struct student s;
struct student fun(void)
{
    s.name = "newton";
    printf("%s\n", s.name);
    s.name = "alan";
    return s;
}
void main()
{
    struct student m = fun();
    printf("%s\n", m.name);
    m.name = "turing";
    printf("%s\n", s.name);
}

#include <stdio.h>
typedef int integer;
int main()
{
    int i = 10, *ptr;
    float f = 20;
    integer j = i;
    ptr = &j;
    printf("%d\n", *ptr);
    return 0;
}

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

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

#include <stdio.h>
union temp
{
    int a;
    float b;
    char c;
};
union temp s = {1,2.5,’A’}; //REF LINE

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