Compilare: user.cpp:95:2: warning: no newline at end of file user.cpp: In function 'void sort_polar(double*, double*, double*, long int, long int)': user.cpp:31: warning: unused variable 'aux' user.cpp: In function 'int main()': user.cpp:59: warning: format '%d' expects type 'int*', but argument 2 has type 'long int*' user.cpp:91: warning: format '%d' expects type 'int', but argument 2 has type 'long int'