/in/foo.c: In function 'main':
/in/foo.c:9:2: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized]
  printf("%d",findmin(a,n));
  ^~~~~~~~~~~~~~~~~~~~~~~~~
/in/foo.c: In function 'findmin':
/in/foo.c:22:9: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return p;
         ^