cx 218 user/testbin/tictac/tictac.c char cx; cx 228 user/testbin/tictac/tictac.c cx = answer[0]; cx 229 user/testbin/tictac/tictac.c x = cx - '0'; cx 237 user/testbin/tictac/tictac.c cx = answer[0]; cx 238 user/testbin/tictac/tictac.c y = cx - '0';