Compilare: user.cpp:35:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:17: warning: comparison between signed and unsigned integer expressions user.cpp:18: warning: format '%d' expects type 'int*', but argument 3 has type 'long unsigned int*' user.cpp:29: warning: comparison between signed and unsigned integer expressions user.cpp:31: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' user.cpp:18: warning: 'n' is used uninitialized in this function user.cpp:27: warning: 'v' is used uninitialized in this function