A pointer is

A pointer is

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1) What is (void*)0?

2) What will be the output of the following C code?

#include <stdio.h>
 int main()
 {
    char *p = NULL;
    char *q = 0;
    if (p)
 	  printf(" p ");
    else
       printf("nullp");
    if (q)
       printf("q\n");
    else
       printf(" nullq\n");
 }

3) What will be the output of the program ?

 #include<stdio.h>
 int main()
 {
     int i=3, *j, k;
     j = &i;
     printf("%d\n", i**j*i+*j);
     return 0;
 }

4) What will be the output of the following C code?

 #include <stdio.h>
 void main()
 {
     int x = 0;
     int *ptr = &x;
     printf("%d\n", *ptr);
 }

5) What will be the output of the following C code?

 #include <stdio.h>
 int main()
 {
     int *ptr, a = 10;
     ptr = &a;
     *ptr += 1;
     printf("%d,%d/n", *ptr, a);
 }