Compilare: user.cpp:63:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:10: warning: format '%d' expects type 'int*', but argument 3 has type 'char*' user.cpp:32: warning: array subscript has type 'char' user.cpp:34: warning: array subscript has type 'char' user.cpp:38: warning: array subscript has type 'char' user.cpp:41: warning: array subscript has type 'char' user.cpp:50: warning: array subscript has type 'char' user.cpp:52: warning: array subscript has type 'char' user.cpp:6: warning: unused variable 'nr' user.cpp:7: warning: unused variable 'last'