Compilare: user.cpp: In function 'void solve()': user.cpp:22: warning: array subscript has type 'char' user.cpp:29: warning: array subscript has type 'char' user.cpp:29: warning: array subscript has type 'char' user.cpp:30: warning: array subscript has type 'char' user.cpp:37: warning: array subscript has type 'char' user.cpp:37: warning: array subscript has type 'char' user.cpp:38: warning: array subscript has type 'char' user.cpp:45: warning: array subscript has type 'char' user.cpp:45: warning: array subscript has type 'char' user.cpp:46: warning: array subscript has type 'char' user.cpp:53: warning: array subscript has type 'char' user.cpp:53: warning: array subscript has type 'char'