/in/foo.cc:67:29: error: ISO C++ forbids declaration of 'q_min' with no type [-fpermissive]
 inl q_min(int id,int l,int r)
                             ^
/in/foo.cc:77:29: error: ISO C++ forbids declaration of 'q_max' with no type [-fpermissive]
 inl q_max(int id,int l,int r)
                             ^