What will be the output of following code :

#include<stdio.h>
int main()
{
if(sizeof(0))
printf(“Hai”);
else
printf(“Bye”);
return 0;
}

What will be the output of following code :

#include<stdio.h>
int main()
{
if(sizeof(‘\0’))
printf(“inside if block”);
else
printf(“inside else block”);
return 0;
}

What will be the output of following code :

#include<stdio.h>
int main()
{
int i = 65;
switch(i)
{
case 65:
printf(“Integer 65”);
break;
case ‘A’:
printf(“Char 65”);
break;
default:
printf(“Bye”);
}
return 0;
}

What will be the output of following code :

#include<stdio.h>
int main()
{

switch(2/3)
{
case 1:
printf(“case 1 executed “);

case 2:
printf(“case 2 executed “);
break;
default:
printf(“Default block executed”);
}
return 0;
}

 What will be the output of following code :

#include<stdio.h>
int main()
{
int i = 1;
switch(i)
{
case i:
printf(“case 1 executed”);
break;
case i + 1;
printf(“case 2 executed”);
break;
default:
printf(“default block executed”);
break;
}
return 0;
}

What will be the output of following code :

#include<stdio.h>
int main(){
while(printf(“%d”, 5) < 4)
printf(“Loop “);
return 0;
}

What will be the output of following code :

#include<stdio.h>
#define NULL 0
int main()
{
while (NULL == 0)
{
printf(“Loop”);
break;
}
return 0;
}

What will be the output of following code :

#include<stdio.h>
int main(){
float ft = 7.5;
while(ft)
{
printf(“Loop”);
ft = ft – .5;
if(ft == 5.0f)
break;
}
return 0;
}

What will be the output of following code :

#include<stdio.h>
int main()
{
while(!!7)
printf(“Hai”);
return 0;
}

What will be the output of following code :

#include<stdio.h>
int main(){
while(!printf(“awesome”));
return 0;
}

What can you say about following line of code:

extern int i;