Compilare: user.cpp: In function ‘void print(std::ostream&, std::vector<std::vector<unsigned int, std::allocator<unsigned int> >, std::allocator<std::vector<unsigned int, std::allocator<unsigned int> > > >&)’: user.cpp:21: warning: comparison between signed and unsigned integer expressions user.cpp:22: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void printb(std::ostream&, std::vector<std::vector<bool, std::allocator<bool> >, std::allocator<std::vector<bool, std::allocator<bool> > > >&)’: user.cpp:32: warning: comparison between signed and unsigned integer expressions user.cpp:33: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:103: warning: comparison between signed and unsigned integer expressions user.cpp:104: warning: comparison between signed and unsigned integer expressions user.cpp:108: warning: comparison between signed and unsigned integer expressions user.cpp:109: warning: comparison between signed and unsigned integer expressions user.cpp:114: warning: comparison between signed and unsigned integer expressions user.cpp:115: warning: comparison between signed and unsigned integer expressions user.cpp:119: warning: comparison between signed and unsigned integer expressions user.cpp:120: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘void getLaserPoints(const point&, const point&, std::vector<point, std::allocator<point> >&)’: user.cpp:141: warning: comparison between signed and unsigned integer expressions user.cpp:148: warning: comparison between signed and unsigned integer expressions