rv.c: In function `main': rv.c:30: warning: array subscript has type `char' rv.c:36: warning: array subscript has type `char' rv.c:49: warning: array subscript has type `char' rv.c:56: warning: array subscript has type `char' rv.c:66: warning: array subscript has type `char' rv.c:78: warning: array subscript has type `char' rv.c:84: warning: array subscript has type `char' rv.c:97: warning: array subscript has type `char' rv.c:104: warning: array subscript has type `char' rv.c:114: warning: array subscript has type `char' rv.c:8: warning: `turn' might be used uninitialized in this function