/in/foo.cc: In function 'int main()':
/in/foo.cc:23:12: error: expected primary-expression before ';' token
  for(int i=; i<n; i++){
            ^
/in/foo.cc: In function 'int getpos(const int*, int, int)':
/in/foo.cc:9:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^