Compilare: user.cpp: In function 'int main()': user.cpp:28: warning: format '%d' expects type 'int*', but argument 2 has type 'long long int*' user.cpp:28: warning: format '%d' expects type 'int*', but argument 3 has type 'long long int*' user.cpp:28: warning: format '%d' expects type 'int*', but argument 4 has type 'long long int*' user.cpp:51: warning: comparison between signed and unsigned integer expressions