Compilare: user.cpp: In function 'int termen()': user.cpp:74: warning: array subscript has type 'char' user.cpp:76: warning: array subscript has type 'char' user.cpp: In function 'int main()': user.cpp:138: warning: format '%c' expects type 'char*', but argument 2 has type 'int*' user.cpp: In function 'int termen()': user.cpp:53: warning: 'a' may be used uninitialized in this function