/in/foo.cc: In member function 'bool Range::operator>(Range) const':
/in/foo.cc:43:2: warning: no return statement in function returning non-void [-Wreturn-type]
  }
  ^
/in/foo.cc: In member function 'void Splay_Tree::Splay(int, int&)':
/in/foo.cc:69:6: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
    if(father!=f)
      ^