A.前序線索二叉樹中求前序后繼 B.中序線索二叉樹中求中序后繼 C.中序線索二叉樹中求中序前趨 D.后序線索二叉樹中求后序后繼
A.99 B.98 C.50 D.48
A.38,40,46,56,79,84 B.40,38,46,79,56,84 C.40,38,46,56,79,84 D.40,38,46,84,56,79