Compilare: user.cpp: In function ‘int main()’: user.cpp:52:12: warning: unused variable ‘rx’ [-Wunused-variable] double rx; ^ user.cpp:53:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &g); ^ user.cpp:56:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%lf", &a[i]); ^