Compilare: user.cpp: In member function ‘void ConvexHull::compute(std::vector<Point, std::allocator<Point> >&, std::vector<int, std::allocator<int> >&, bool*, int, int)’: user.cpp:65: warning: comparison between signed and unsigned integer expressions user.cpp: In member function ‘void ConvexHull::convexHull(std::vector<Point, std::allocator<Point> >&)’: user.cpp:90: warning: comparison between signed and unsigned integer expressions user.cpp: In member function ‘bool Node::query(Dreapta)’: user.cpp:128: warning: comparison between signed and unsigned integer expressions