V2EX complete binary tree

Complete Binary Tree

定义 Definition

(数据结构)完全二叉树:除最后一层外,每一层的结点都被填满;最后一层的结点按从左到右尽可能靠左排列。常用于实现二叉堆(heap),便于用数组顺序存储。

发音 Pronunciation (IPA)

/kmplit banri tri/

词源 Etymology

complete 意为“完整的、齐全的”,来自拉丁语 completus(填满、完成);binary 意为“二进制的/由二组成的”,来自拉丁语 bini(两个一组);tree 在计算机科学中借用“树”的形象来表示分层分支结构。合起来指“一种结构上尽可能被填满的二叉树”。

例句 Examples

A heap is usually stored as a complete binary tree.
堆通常以完全二叉树的形式存储。

Because the complete binary tree keeps nodes packed to the left, we can map parent and child positions efficiently in an array.
由于完全二叉树把结点尽量向左紧凑排列,我们可以在数组中高效地映射父子结点的位置。

相关词 Related Words

文献与作品 Literary / Notable Works

  • Introduction to Algorithms(Cormen, Leiserson, Rivest, Stein):在堆与堆排序部分讲解以完全二叉树表示的二叉堆。
  • The Art of Computer Programming, Vol. 1: Fundamental Algorithms(Donald E. Knuth):在树与数据结构相关章节讨论二叉树及其结构性质。
  • Algorithms(Robert Sedgewick & Kevin Wayne):在优先队列/堆实现中使用完全二叉树的数组表示法。
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