Compilare: user.c: In function 'init': user.c:36: warning: array subscript has type 'char' user.c:36: warning: array subscript has type 'char' user.c: In function 'solve': user.c:60: warning: array subscript has type 'char' user.c:60: warning: array subscript has type 'char' user.c:65: warning: array subscript has type 'char' user.c:65: warning: array subscript has type 'char' user.c:65: warning: array subscript has type 'char' user.c:65: warning: array subscript has type 'char' user.c:69: warning: array subscript has type 'char' user.c:69: warning: array subscript has type 'char' user.c:69: warning: array subscript has type 'char' user.c:69: warning: array subscript has type 'char' user.c:71: warning: array subscript has type 'char' user.c:71: warning: array subscript has type 'char' user.c:71: warning: array subscript has type 'char' user.c:71: warning: array subscript has type 'char' user.c:74: warning: array subscript has type 'char' user.c:74: warning: array subscript has type 'char' user.c:74: warning: array subscript has type 'char' user.c:74: warning: array subscript has type 'char' user.c:97:2: warning: no newline at end of file