Compilare: user.cpp: In function ‘int main()’: user.cpp:618:6: warning: variable ‘solI’ set but not used [-Wunused-but-set-variable] int solI; ^ user.cpp:619:9: warning: unused variable ‘alpha’ [-Wunused-variable] double alpha; ^ user.cpp:601:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%lf %lf", &A.X, &A.Y); ^ user.cpp:602:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%lf %lf", &B.X, &B.Y); ^ user.cpp:603:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%lf %lf", &C.X, &C.Y); ^