/in/foo.c: In function 'main':
/in/foo.c:14:14: warning: format '%d' expects a matching 'int' argument [-Wformat=]
  printf("%d %d" , min);
              ^
/in/foo.c:5:2: warning: 'n' is used uninitialized in this function [-Wuninitialized]
  for(i=0;i<n;i++)
  ^~~