Compilare: main.cpp: In member function 'void Geometry::readVertexes()': main.cpp:106:43: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lf %lf", &v[i].x, &v[i].y); ^ main.cpp: In function 'int main()': main.cpp:201:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^