Compilare: user.cpp: In function 'int main()': user.cpp:8: warning: format '%ld' expects type 'long int*', but argument 3 has type 'int*' user.cpp:8: warning: format '%ld' expects type 'long int*', but argument 4 has type 'int*' user.cpp:5: warning: unused variable 'k' user.cpp:7: warning: 'C' may be used uninitialized in this function