/in/foo.c: In function 'FindMax':
/in/foo.c:17:9: warning: 'h' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return h;
         ^
/in/foo.c: In function 'main':
/in/foo.c:29:2: warning: 'h' may be used uninitialized in this function [-Wmaybe-uninitialized]
  printf("%d",m);
  ^~~~~~~~~~~~~~