Compilare: user.cpp: In function 'int suma(long int)': user.cpp:59: warning: comparison between signed and unsigned integer expressions user.cpp: In function 'int main()': user.cpp:70: warning: format '%d' expects type 'int*', but argument 3 has type 'long int*' user.cpp:73: warning: format '%lld' expects type 'long long int*', but argument 3 has type 'long int*'