一、选择题 1.d2.d3.d4.b5.b6.b7.c,8.a9.c10.c,d,f11.1d,c11.2a,d,f

第六章树和二叉树 第一节树的类型定义 A为“根” T1、T2和T3都是一棵树,称为A的子树。 称根和子树根之间的连线为“分支” 结点分支的个数定义为“结点的度”,如结点的度为2,D的度为3

第一节树的类型定义 A为“根 T1、T2和T3都是一棵树,称为A的子树 称根和子树根之间的连线为“分支” 结点分支的个数定义为“结点的度”,如结点 B的度为2,D的度为3

3.1 排序的基本概念 3.2 简单的排序方法 3.2.1 插入排序 3.2.2 起泡排序 3.3 先进的排序方法 3.3.1 快速排序 3.3.2 归并排序 3.3.3 堆排序 3.4 基数排序 3.4 各种排序方法的综合比较

(1) Input There are zero or more quantities that are externally supplied. (2) Output At least one quantity is produced. (3) Definiteness Each instruction is clear and unambiguous. (4) Finiteness If we trace out the instructions of an algorithm, then for all cases, the algorithm terminates after finite number of steps. (5) Effectiveness Every instruction must be basic enough to be carried out, in principle, by a person using only pencil and paper. It is not enough that each operation be definite as in(3); it also must be feasible