Compilare: user.cpp: In function 'void trace(int, int, int)': user.cpp:25: warning: array subscript has type 'char' user.cpp:25: warning: array subscript has type 'char' user.cpp: In function 'int main()': user.cpp:51: warning: array subscript has type 'char' user.cpp:51: warning: array subscript has type 'char' user.cpp:52: warning: array subscript has type 'char' user.cpp:52: warning: array subscript has type 'char' user.cpp:64: warning: array subscript has type 'char' user.cpp:64: warning: array subscript has type 'char' user.cpp:69: warning: array subscript has type 'char' user.cpp:69: warning: array subscript has type 'char'