Compilare: user.cpp:78:2: warning: no newline at end of file user.cpp: In function 'void back(char, int)': user.cpp:21: warning: array subscript has type 'char' user.cpp:21: warning: array subscript has type 'char' user.cpp:23: warning: array subscript has type 'char' user.cpp:24: warning: array subscript has type 'char' user.cpp:25: warning: array subscript has type 'char' user.cpp:26: warning: array subscript has type 'char' user.cpp: In function 'int main()': user.cpp:35: warning: format '%ld' expects type 'long int*', but argument 2 has type 'int*' user.cpp:35: warning: format '%ld' expects type 'long int*', but argument 3 has type 'int*' user.cpp:72: warning: format '%ld' expects type 'long int', but argument 2 has type 'int' user.cpp:74: warning: format '%ld' expects type 'long int', but argument 2 has type 'int' user.cpp:75: warning: format '%ld' expects type 'long int', but argument 2 has type 'int'