將{5, 2, 7, 3, 4, 1, 6}依次插入初始為空的二叉排序樹。則該樹的後序遍歷結果是:()
A.1, 2, 3, 4, 6, 7, 5
B.1, 4, 2, 6, 3, 7, 5
C.1, 4, 3, 2, 6, 7, 5
D.5, 4, 3, 7, 6, 2, 1
正確答案:1, 4, 3, 2, 6, 7, 5
將{5, 2, 7, 3, 4, 1, 6}依次插入初始為空的二叉排序樹。則該樹的後序遍歷結果是:()
A.1, 2, 3, 4, 6, 7, 5
B.1, 4, 2, 6, 3, 7, 5
C.1, 4, 3, 2, 6, 7, 5
D.5, 4, 3, 7, 6, 2, 1
正確答案:1, 4, 3, 2, 6, 7, 5