15. What about sizeof operator?

Ans:
It returns the size of the variable.

Ex - 1: What is the output?

void main()
{
float j;
j=1000*1000;
printf("%f",j);
}

1. 1000000
2. Overflow
3. Error
4. None

Ans: 4

Ex - 2: What is the output?

void main()
{
int i=7;
printf("%d",i++*i++);
}

Ans: 56

Ex - 3: Find the output for the following C program
main()
{
int x=20,y=35;
x = y++ + x++;
y = ++y + ++x;
printf("%d %d\n",x,y);
}

Ans: 57 94