Compilare: main.cpp: In function 'void Precompute()': main.cpp:49:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<double>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for (int i = 0; i < Ang.size() - 1; ++ i ) | ~~^~~~~~~~~~~~~~~~