若某二叉树的先序遍历序列是ABDCE，中序遍历序列是BDACE，则该二叉树为（ ）。
- A.<img src='http://tp.mxqe.com/data/718/17975802_0.png' alt='中级软件评测师,历年真题,2019年下半年（上午）《软件评测师》真题' title='中级软件评测师,历年真题,2019年下半年（上午）《软件评测师》真题'>
- B.<img src='http://tp.mxqe.com/data/718/17975802_0_1.png' alt='中级软件评测师,历年真题,2019年下半年（上午）《软件评测师》真题' title='中级软件评测师,历年真题,2019年下半年（上午）《软件评测师》真题'>
- C.<img src='http://tp.mxqe.com/data/718/17975802_0_2.png' alt='中级软件评测师,历年真题,2019年下半年（上午）《软件评测师》真题' title='中级软件评测师,历年真题,2019年下半年（上午）《软件评测师》真题'>
- D.<img src='http://tp.mxqe.com/data/718/17975802_0_3.png' alt='中级软件评测师,历年真题,2019年下半年（上午）《软件评测师》真题' title='中级软件评测师,历年真题,2019年下半年（上午）《软件评测师》真题'>
正确答案及解析
正确答案
解析
先序遍历：先遍历根节点，然后以先序遍历的方式遍历左子树，最后以先序遍历的方式遍历右子树。
中序遍历：先以中序遍历的方式遍历左子树，然后遍历根节点，最后以中序遍历的方式遍历右子树。
选项A：先序遍历的结果为：ABDEC；中序遍历的结果为：DBEAC
选项B：先序遍历的结果为：ABCDE；中序遍历的结果为：BADCE
选项C：先序遍历的结果为：ABDCE；中序遍历的结果为：BDAEC
选项D：先序遍历的结果为：ABDCE；中序遍历的结果为：BDACE
包含此试题的试卷
你可能感兴趣的试题
Advancements in （ ）have contributed to the growth of the automotive industry through the creation and evolution of self-driving vehicles.
-
- A.Artificial Intelligence
- B.Cloud Computing
- C.Internet of Things
- D.Big Data
- 查看答案
In project human resource management , （ ）is not a source of power for the project manager.
-
- A.referent power
- B.expert power
- C.reward power
- D.audit power
- 查看答案
At the project establishment stage , the feasibility study mainly includes techinical feasibility analysis , （ ）, operation environment feasibility analysis and other aspects of feasibility analysis.
-
- A.detail feasibility analysis
- B.opportunity analysis
- C.economic feasibility analysis
- D.risk analysis
- 查看答案
（ ）is a grid that shows the project resources assigned to each work package.
-
- A.Stakeholder engagement assessment matrix
- B.Requirements traceability matrix
- C.Probability and impact matrix
- D.Responsibility assignment matrix
- 查看答案
Xinhua News Agency reported in January 2022，Chian will further promote the developmet of a digital economy during the 14th Five-Year Plan eriod（2021-2025）. The plan also emphasized industrial （ ）transformation.
-
- A.digital
- B.networking
- C.intelligentize
- D.informatization
- 查看答案