说到处recursion都使用for循环是否正确？如果递归通常较慢,那么将其用于循环迭代的技术原因是什么？
如果始终可以将递归转换为for循环,那么可以采用经验法则吗？
我如何编写一个Java迭代器(即需要next和hasNext方法),它采用二叉树的根,并按顺序迭代二叉树的节点？
试图学习树节点......
Binary search tree (BST) is a binary tree where the value of each node is larger or equal to the values in all the nodes in that node's left subtree and is smaller than the values in all the nodes in that node's right subtree.
Write a function that checks if a given binary search tree contains a given value.
For example, for the following tree:
n1 (Value: 1, Left: null, Right: null)
n2 (Value: 2, Left: n1, Right: …