V2EX full binary tree

Full Binary Tree

定义 Definition

full binary tree(满二叉树):一种二叉树结构,其中每个节点要么没有子节点(叶子节点),要么恰好有两个子节点;不存在“只有一个子节点”的节点。
(注意:它不同于 complete binary tree「完全二叉树」和 perfect binary tree「完美二叉树」。)

发音 Pronunciation

/fl banri tri/

例句 Examples

A full binary tree has no nodes with only one child.
满二叉树中不存在只有一个子节点的节点。

In a full binary tree, the number of leaves is one more than the number of internal nodes.
在满二叉树中,叶子节点的数量比内部节点的数量多 1。

词源 Etymology

full 在这里表示“结构上完整、没有缺一边的情况”;binary 源自拉丁语 bini(“两个一组”),表示“二”;tree 在数学与计算机科学中借用“树”的形象来表示层级分支结构。合起来强调:每次分叉都“成对出现”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Donald E. Knuth, The Art of Computer Programming(在树形结构与递归讨论中涉及二叉树及其变体术语)
  • Thomas H. Cormen et al., Introduction to Algorithms(算法与数据结构章节中讨论二叉树性质,相关术语常出现)
  • Robert Sedgewick & Kevin Wayne, Algorithms(讲解树结构与实现时常对二叉树类型作区分,包括“full”这一类约束)
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