What will be the output of the program?

#include<stdio.h>
i

What will be the output of the program?

#include<stdio.h>
int i;
int fun();
int main()
 {
     while(i)
     {
         fun();
         main();
     }
     printf("Hello\n");
     return 0;
 }
 int fun()
 {
     printf("Hi");
 }

2) What will be the output of the program?

#include<stdio.h>
void fun(int);
typedef int (*pf) (int, int);
int proc(pf, int, int);
int main()
 {
     int a=3;
     fun(a);
     return 0;
 }
void fun(int n)
 {
     if(n > 0)
     {
         fun(--n);
         printf("%d,", n);
         fun(--n);
     }
 }

3) The keyword used to transfer control from a function back to the calling function is

4) What will be the output of the program?

#include<stdio.h>
#include<stdlib.h>
int main()
 {
     int i=0;
     i++;
     if(i<=5)
     {
         printf("Study2Online");
         exit(1);
         main();
     }
     return 0;
 }

5) What will be the output of the program in 16 bit platform (Turbo C under DOS)?

#include<stdio.h>
int main()
 {
     int fun();
     int i;
     i = fun();
     printf("%d\n", i);
     return 0;
 }
 int fun()
 {
     _AX = 1990;
 }