Gate2019 cs Q63

0. Consider the following C program:

int main()
{
int a[] = {2, 4, 6, 8, 10};
int i, sum = 0, *b = a + 4;
for (i = 0; i < 5; i++)
sum = sum + (*b – i) – *(b – i);
printf (“%d\n”, sum);
return 0;
}
The output of the above C program is __________.

Note – Numerical Type question

Answer
Comment
Array

Option : D
Explanation :
Given, “for” loop will run from i=0 to 4.
i = 0
sum = 0+ 10 – 10 = 0
i = 1
sum = 0 + 9 – 8 = 1
i = 2
sum = 1 + 8 – 6 = 3
i = 3
sum = 3 + 7 – 4 = 6
i = 4
sum = 6 + 6 – 2 = 10
Now, loop terminate and value of sum (i.e., 10) will be printed. So, The output of above C program is 10.

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