/in/foo.c: In function 'main':
/in/foo.c:44:14: warning: format '%d' expects argument of type 'int', but argument 2 has type 'int *' [-Wformat=]
     printf("%d %d\n", &cnt1, &cnt2);
              ^
/in/foo.c:44:17: warning: format '%d' expects argument of type 'int', but argument 3 has type 'int *' [-Wformat=]
     printf("%d %d\n", &cnt1, &cnt2);
                 ^