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;
}

What does the following C statement declare?

int (*f)(int *);

Consider the following C function:

void swap (int a, int b)
{
   int temp;
   temp = a;
   a = b;
   b = temp;
}

In order to exchange the values of two variables x and y.