Consider the following C program.

#include < stdio.h >
    void mystery(int *ptra, int *ptrb) {
    int *temp;
    temp = ptrb;
    ptrb = ptra;
    ptra = temp;
}
int main() {
    int a=2016, b=0, c=4, d=42;
    mystery(&a, &b);
    if (a < c)
       mystery(&c, &a);
    mystery(&a, &d);
    printf("%d\n", a);
}

The output of the program is _____________.

The output of the following C program is__________.

void f1(int a, int b) { 
int c; 
c=a; a=b; b=c; 
}

void f2(int *a, int *b) { 
int c; 
c=*a; *a=*b; *b=c; 
}

int main(){ 
int a=4, b=5, c=6; 
f1(a,b); 
f2(&b, &c); 
printf(“%d”,c-a-b); 
}

What does the following fragment of C-program print?

char c[ ] = "GATE2011";
char *p = c;
printf("%s", p + p[3] - p[1]);

What does the following program print?

#include < stdio.h >
void f (int *p, int *q) {
     p = q;
    *p = 2;
}
int i = 0, j = 1;
int main ( ){
     f(&i, &j);
     printf ("%d %d \ n", i, j);
     return 0;
}