-#define OPT_LEAF (1<<0)
-#define OPT_INORDER (1<<1)
-#define OPT_DEGREE (1<<2)
-#define OPT_FAST_PREORDER_SELECT (1<<3)
-#define OPT_FAST_LEAF_SELECT (1<<4)
-#define OPT_FAST_INORDER_SELECT (1<<5)
-#define OPT_FAST_POSTORDER_SELECT (1<<6)
-#define OPT_DFUDS_LEAF (1<<7)
-#define OPT_FAST_DFUDS_LEAF_SELECT (1<<8)
+#define OPT_LEAF (1 << 0)
+#define OPT_INORDER (1 << 1)
+#define OPT_DEGREE (1 << 2)
+#define OPT_FAST_PREORDER_SELECT (1 << 3)
+#define OPT_FAST_LEAF_SELECT (1 << 4)
+#define OPT_FAST_INORDER_SELECT (1 << 5)
+#define OPT_FAST_POSTORDER_SELECT (1 << 6)
+#define OPT_DFUDS_LEAF (1 << 7)
+#define OPT_FAST_DFUDS_LEAF_SELECT (1 << 8)