- Computer Science Engineering (CSE)
- Data Structures (DS)
- Non Linear Data Structures - Trees
- What are the conditions for an optimal b...

Q. |
## What are the conditions for an optimal binary search tree and what is its advantage? |

A. | The tree should not be modified and you should know how often the keys are accessed, it improves the lookup cost |

B. | You should know the frequency of access of the keys, improves the lookup time |

C. | The tree can be modified and you should know the number of elements in the tree before hand, it improves the deletion time |

D. | The tree should be just modified and improves the lookup time |

Answer» A. The tree should not be modified and you should know how often the keys are accessed, it improves the lookup cost |

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Data Structures (DS)

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- In a directed tree if the ordering of the nodes at each level is prescribed then such a tree is called_______ tree.
- Which of the following pair’s traversals on a binary tree can build the tree uniquely?

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