Compilare: main.cpp: In member function 'int Camera::processNeedles(std::vector<std::pair<int, int> >&, double)': main.cpp:176:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 176 | for (int i = 0; i < z.size(); i++) | ~~^~~~~~~~~~ main.cpp: In member function 'int Camera::getVisibleNeedlesAllDirections()': main.cpp:222:13: warning: variable 'item' set but not used [-Wunused-but-set-variable] 222 | for (auto item : a) | ^~~~ main.cpp: In member function 'int Camera::getVisibleNeedles(int)': main.cpp:255:7: warning: unused variable 'count' [-Wunused-variable] 255 | int count = 0; | ^~~~~ main.cpp: In function 'int main()': main.cpp:166:11: warning: 'camera_coords.Point::y' may be used uninitialized in this function [-Wmaybe-uninitialized] 166 | this->p = pos; | ~~~~~~~~^~~~~ main.cpp:310:8: note: 'camera_coords.Point::y' was declared here 310 | Point camera_coords; | ^~~~~~~~~~~~~ main.cpp:166:11: warning: 'camera_coords.Point::x' may be used uninitialized in this function [-Wmaybe-uninitialized] 166 | this->p = pos; | ~~~~~~~~^~~~~ main.cpp:310:8: note: 'camera_coords.Point::x' was declared here 310 | Point camera_coords; | ^~~~~~~~~~~~~