- What is the maximum number of internal nodes?
- How many leaves are there in a full binary tree?
- What is the best case complexity in building a heap?
- How many nodes will be there in a full binary tree having 4 levels?
- What are the minimum and maximum numbers of elements in a heap of height h?
- Which type of binary tree is used in heap sort?
- What is the minimum and maximum number of nodes in a complete binary tree of height h?
- Which expression gives the maximum number of nodes?
- What is heap sort in data structure?
- Is heap a data structure?
- How many distinct binary trees are there?
- What is minimum depth of binary tree?
- What is a perfect tree?
- What is degree of node in data structure?
- How do I sort min heap?
- How many leaves heap?
- Where do all the leaf nodes of a heap tree lie?
- Is a sorted array a min heap?
- Which is true in case of Max Heap?
- Is BST a complete tree?

## What is the maximum number of internal nodes?

A tree has maximum nodes if all levels have maximum nodes.

So maximum number of nodes in a binary tree of height h is 1 + 2 + 4 + ..

+ 2h-1..

## How many leaves are there in a full binary tree?

The number of leaf nodes in a full binary tree with n nodes is equal to (n+1)/2. Refrence to the above formula. You start with 1 leaf node and each branching step creates 2 new leaf nodes, and one leaf node turns into an internal node (for a net of +1 leaf in the tree).

## What is the best case complexity in building a heap?

In summary, the work for heap sort is the sum of the two stages: O(n) time for buildHeap and O(n log n) to remove each node in order, so the complexity is O(n log n).

## How many nodes will be there in a full binary tree having 4 levels?

3 Answers. In the general case, a binary tree with n nodes will have at least 1 + floor(log_2(n)) levels. For example, you can fit 7 nodes on 3 levels, but 8 nodes will take at least 4 levels no matter what.

## What are the minimum and maximum numbers of elements in a heap of height h?

The maximum number of elements is the number of elements in a complete tree of height h, 2^(h+1) − 1. The minimum number of elements is one more than the number of elements in a complete tree of height h-1, 2^(h−1+1)− 1 + 1 = 2^h.

## Which type of binary tree is used in heap sort?

A heap is a tree data structure that satisfies the following properties: Shape property: Heap is always a complete binary tree which means that all the levels of a tree are fully filled. There should not be a node which has only one child.

## What is the minimum and maximum number of nodes in a complete binary tree of height h?

If binary tree has height h, minimum number of nodes is h+1 (in case of left skewed and right skewed binary tree). For example, the binary tree shown in Figure 2(a) with height 2 has 3 nodes. If binary tree has height h, maximum number of nodes will be when all levels are completely full.

## Which expression gives the maximum number of nodes?

The maximum number of nodes on level i of a binary tree is : if level is 3 then there will be maximum 7 nodes in the binary tree. which is 2^3-1=8-1=7. hence the answer is (A).

## What is heap sort in data structure?

Heap sort is a comparison based sorting technique based on Binary Heap data structure. It is similar to selection sort where we first find the maximum element and place the maximum element at the end.

## Is heap a data structure?

In computer science, a heap is a specialized tree-based data structure which is essentially an almost complete tree that satisfies the heap property: in a max heap, for any given node C, if P is a parent node of C, then the key (the value) of P is greater than or equal to the key of C. In a min heap, the key of P is …

## How many distinct binary trees are there?

Hence 14 distinct binary search trees possible for 4 keys.

## What is minimum depth of binary tree?

The minimum depth of a binary tree is the number of nodes from the root node to the nearest leaf node.

## What is a perfect tree?

A perfect binary tree is a binary tree in which all interior nodes have two children and all leaves have the same depth or same level. An example of a perfect binary tree is the (non-incestuous) ancestry chart of a person to a given depth, as each person has exactly two biological parents (one mother and one father).

## What is degree of node in data structure?

DEFINITION: The degree of a node is the number of its children. The degree of a tree is the maximum degree of any of its nodes. DEFINITION: Nodes with the same parent are called siblings.

## How do I sort min heap?

Heap Sort for decreasing order using min heapAlgorithm :Build a min heap from the input data.At this point, the smallest item is stored at the root of the heap. Replace it with the last item of the heap followed by reducing the size of heap by 1. Finally, heapify the root of tree.Repeat above steps while size of heap is greater than 1.

## How many leaves heap?

The number of leaves in a binary heap is equal to n/2, where n is the total number of nodes in the tree, is even and n/2 when n is odd. If these leaves are removed, the number of new leaves will be lg(n/2/2 or n/4 .

## Where do all the leaf nodes of a heap tree lie?

1 Answer. It has 4 (22) nodes at the bottom level, and 3 levels. If the bottom level is full, then the number of leaf nodes is the same as the number of nodes on the bottom level.

## Is a sorted array a min heap?

7 Answers. An array sorted from lowest to highest is a min-heap when using the array-based heap implementation. The heap property that the parent node is greater than it’s child nodes (2i + 1 and 2i + 2, using zero-based arrays) holds for all nodes that have children. … Is a sorted array a min-heap?

## Which is true in case of Max Heap?

A tree is max-heap if data at every node in the tree is greater than or equal to it’s children’ s data. In array representation of heap tree, a node at index i has its left child at index 2i + 1 and right child at index 2i + 2.

## Is BST a complete tree?

Full v.s. Complete Binary Trees. A full binary tree (sometimes proper binary tree or 2-tree) is a tree in which every node other than the leaves has two children. A complete binary tree is a binary tree in which every level, except possibly the last, is completely filled, and all nodes are as far left as possible.