Programming Language GATE-2012 Problem Solution

Consider the following C code segment.
int a, b, c = 0;
void prtFun(void);
main()
{
static int a = 1; /* Line 1 */
prtFun();
a += 1;
prtFun();
printf(“ \n %d %d ”, a, b);
}
void prtFun(void)
{
static int a = 2; /* Line 2 */
int b = 1;
a += ++b;
printf(“ \n %d %d ”, a, b);
}
What output will be generated by the given code segment if:
Line 1 is replaced by auto int a=1;
Line 2 is replaced by register int a=2;
GATE CSE 2012 Question: 49

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