Compilare: user.cpp: In function 'int main()': user.cpp:83: warning: array subscript has type 'char' user.cpp:83: warning: array subscript has type 'char' user.cpp:90: warning: array subscript has type 'char' user.cpp:119: warning: array subscript has type 'char' user.cpp:112: warning: 'x' may be used uninitialized in this function