Question

Consider the following program.
void main()
{
static int x = 10;
int i = 0;
for (i=0; i<2; i + +)
{
int x = 20;
x = x+1;
}
x=x+1;
printf("%d",x);
}
What is the output of the above program?

• A. 22
• B. 11
• C. 10
• D. 23

Answer 1

The correct option is B 11

For loop block has variable 'x'. It has no effect on the outside for block on static variable x.
x = x+1 statement uses static variable x and variable x of for block scope completes and not available after the loop termination.
x = x+1 = 10+1 = 11
So, output 11 will be produced by the given code.