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Point out the error (if any) in the following C code?<br><pre><code class="c-program">#include &lt;stdlib.h&gt;#include &lt;stdio.h&gt;int main(void){ int* p = NULL; struct S *s = NULL; void(*f)(int, double) = NULL; char *ptr = malloc(15); if (ptr == NULL) printf("Out of memory"); free(ptr);}</code></pre>

Correct Answer: No error

Which of the following should be used for freeing the memory allocated in the following C code?
#include <stdio.h>struct p{ struct p *next; int x;};int main(){ struct p *p1 = (struct p*)malloc(sizeof(struct p)); p1->x = 1; p1->next = (struct p*)malloc(sizeof(struct p)); return 0;}

What will output when you compile and run the following code?#include <stdio.h>
struct student
{ int roll;
int cgpa;
int sgpa[8]; }; void main()
{ struct student s = { 12,8,7,2,5,9 };
int *ptr;
ptr = (int *)&s;
clrscr();
printf( "%d", *(ptr+3) );
getch(); }

Which among the following is correct syntax to declare a 2D array using new operator? = new char; b) char (pchar) = new char; c) char (*char) = new char; d) char (*char)= new char;

What is the output of this program ? #include
using namespace std;
int n(char, int);
int (*p) (char, int) = n;
int main()
{
(*p)('d', 9);
p(10, 9);
return 0;
}
int n(char c, int i)
{
cout << c << i;
return 0;
}

What is the output of this program? #include
using namespace std;
struct sec {
int a;
char b;
};
int main()
{
struct sec s ={25,50};
struct sec *ps =(struct sec *)&s;
cout << ps->a << ps->b;
return 0;
}

The number of distinct nodes the following struct declaration can point to is . . . . . . . .
struct node{ struct node *left; struct node *centre; struct node *right;};

Comment on the output of the following C code.
#include <stdio.h>int main(){ char *str = "This" //Line 1 char *ptr = "Program\n"; //Line 2 str = ptr; //Line 3 printf("%s, %s\n", str, ptr); //Line 4}

What type of initialization is needed for the segment “ptr = ‘3’;” to work? = “Hello!”; c) both char *ptr = “Hello!”; and char ptr = “Hello!”; d) none of the mentioned

Calculate the % of memory saved when bit-fields are used for the following C structure as compared to with-out use of bit-fields for the same structure? (Assuming size of int = 4)
struct temp{ int a : 1; int b : 2; int c : 4; int d : 4;}s;

Study the following information and answer the questions. Point A is 8m to the west of Point B. Point C is 4m to the south of Point B. Point D is 4m to the east of Point C. Point F is 6m to the north of Point D. Point E is 8m to the west of Point F. Point G is 2m to the south of Point E. How far and in which direction is Point G from Point A?