Compilare: user.cpp:115:2: warning: no newline at end of file user.cpp: In function 'void swap(double, double)': user.cpp:13: warning: unused variable 'aux' user.cpp: In function 'int main()': user.cpp:68: warning: format '%d' expects type 'int*', but argument 2 has type 'long int*' user.cpp:111: warning: format '%d' expects type 'int', but argument 2 has type 'long int'