Compilare: user.cpp: In function 'int termen()': user.cpp:81: warning: array subscript has type 'char' user.cpp: In function 'int main()': user.cpp:142: warning: array subscript has type 'char' user.cpp:144: warning: array subscript has type 'char' user.cpp:145: warning: array subscript has type 'char' user.cpp:154: warning: array subscript has type 'char' user.cpp:156: warning: array subscript has type 'char' user.cpp:157: warning: array subscript has type 'char' user.cpp: In function 'int termen()': user.cpp:78: warning: 'a' may be used uninitialized in this function