二叉树

二叉樹

èrchāshù

noun

Measure Word

一棵二叉树 kē

Meanings

1 binary tree

Characters

Examples

堆是一种特殊的二叉树。

Duī shì yī zhǒng tèshū de èrchāshù.

A heap is a special kind of binary tree.

请实现二叉树的中序遍历。

Qǐng shíxiàn èrchāshù de zhōngxù biànlì.

Please implement in-order traversal of a binary tree.

Tips

memory

二 (two) + 叉 (fork / branch) + 树 (tree) = 'two-branch tree.' 叉 pictures a fork in the road — every node forks into at most two children.

Stroke Order

二 èr

叉 chā

树 shù