/in/foo.cc: In function 'int Output(int*, int)':
/in/foo.cc:11:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:16:10: warning: 'i' may be used uninitialized in this function [-Wmaybe-uninitialized]
  for(int i;i<n;i++)
          ^