数据结构与算法基础
发布时间:2023年12月25日
数组
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稀疏矩阵
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题目
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代入法选A
数据结构的定义
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线性表
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顺序存储和链式存储的对比
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队列与栈
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题目
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答案选:D
广义表
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树与二叉树
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二叉树遍历
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图中前序遍历结果是?
1,2,4,5,7,8,3,6
图中中序遍历结果是?
4,7,8,5,2,1,3,6
图中后序遍历结果是?
4,8,7,5,2,6,3,1
图中层次遍历结果是?
1,2,3,4,5,6,7,8
反向构造二叉树
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需要中序搭配前序和后序遍历才能反向的构造出二叉树
树转二叉树
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查找二叉树
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最优二叉树(哈夫曼树)
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线索二叉树
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平衡二叉树
图
图的基本概念级存储
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邻接矩阵
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邻接表
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树的遍历
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拓扑排序
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最小生成树
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算法
算法的特性
- 有穷性:执行有穷步之后结束
- 确定性:算法中每一条指令都必须有确切的含义,不能含糊不清。
- 一个算法有零个或多个输入,以刻画运算对象的初始情况,所谓零个输入是指算法本身给定了初始条件。
- 一个算法有一个或多个输出。没有输出的算法毫无意义。
- 有效性:算法的每个步骤都能有效执行并能得到确定的结果。例如 a =0, b / a 就无效
算法的复杂度
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查找
顺序查找
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二分查找
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折半查找在查找成功时关键字的比较次数最多为
log
?
2
n
\log_2 n
log2?n + 1 次。折半查找的时间复杂度为伏O(
log
?
2
n
\log_2 n
log2?n) 。
散列表
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排序
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插入排序
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希尔排序
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直接选择排序
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堆排序
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冒泡排序
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快速排序法
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归并排序法
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基数排序
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复杂度
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来源于软件设计师学习视频(仅供学习参考,附历年真题及详解)_哔哩哔哩_bilibili的网课记
文章来源:https://blog.csdn.net/iloveyouwh/article/details/135197089
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