
#include <stdio.h>
int main() {
int a[10] = {3, 7, 9, 11, 0, 6, 7, 5, 4, 2}, t, i;
int *p = a, *q = &a[9];
while (p < q) {
t = *p;
*p = *q;
*q = t;
p++;
q--;
}
p = a;
for (i = 0; i < 10; i++)
printf("%3d", *(p + i));
return 0;
}


