Compilare: user.c: In function 'solve': user.c:87: warning: array subscript has type 'char' user.c:87: warning: array subscript has type 'char' user.c:135:2: warning: no newline at end of file user.c: In function 'wat_direction': user.c:41: warning: control reaches end of non-void function user.c: In function 'direction': user.c:33: warning: control reaches end of non-void function