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Kerala PSC AP Exam

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What will be the value of f after the execution of following program

void main()
{
    char a;
    float f = 10;
    for(a=1; a<=5; a++)
    {
        f-=.2;
        printf("\nf = %g", f);
    }
}


A) 5.0
B) 9
C) 9.0
D) error

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1 Answer

Best answer
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2 votes

Given Program is very straightforward .The only logic here is:

  f-=.2;

The above statement will be interpreted as

$f=f-.2;$

Here the for loop is executive five times ,and each time the value of f is decremted by $.2$.

So output will be :

Now the question is asking What will be the value of $f$ after the execution of following program

So final value of $f$ is $9$.

Why not option C?

%$g$  is for  It's there only to remove the trailing zeroes, otherwise it does the same thing as %$f$ or %$e$ (both of which are much more common).

 %$g$  specifies the shortest representation of %$e$ or %$f$.

So option B is correct.

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