Test by Bikram | Mock GATE | Test 1 | Question: 2

Question

Find the output of the following program :

#include <stdio.h>
main ()
{
int a, b;
int v=3;
int *pv;
a = 2 * (v+5);
pv = &v;
b = 2*(*pv + 5);
printf("\n a=%d b=%d " , a,b);
}

• A. $a = 16$ , $b = 16$
• B. $a = 16$ , $b = 32$
• C. $a = 16$ , $b = 8$
• D. $a = 16$ , $b = 64$

Answer 1

a = 2 * (v + 5) = 2 * (3 + 5) = 2 * 8 = 16
b = 2 * (*pv + 5) , now here v and (*pv) represent the same integer value, that is 3 .
so, b = 2 * (3 + 5) = 16, hence a = 16,b = 16