A tree is a nonlinear hierarchical data structure made up of nodes connected by edges. A binary tree is a tree where each element has only two children, one on the left and one on the right. A binary search tree is a root binary tree in which each inner node has a key higher than all keys in the node’s left subtree but lower than keys in the node’s right subtree. An AVL tree is a self-balancing binary search tree (BST) in which the left and right nodes of the tree are balanced.
Basic Operations of Binary Search Tree:
- Insert: Inserts an element in a tree.
- Delete: Removes an element from the tree.
- Search: Search for a specific element in the tree.
Tree Traversals:
Traversal is the process of visiting all nodes of a tree in a certain way and printing their values. There are three ways to traverse the tree:
- In-order Traversal: visits left subtree, node, right subtree.
- Pre-order Traversal: visits each node before its children
- Post-order Traversal: visits each node after its children.
The following section contains various C programs on trees, binary trees, binary search trees, AVL trees, and nodes of a tree. It also covers various programs on Tree traversals such as bfs traversal, dfs traversal, inorder traversal, preorder, and postorder traversals. Each sample program on trees includes a program description, C code, and program output. All examples have been compiled and tested on Windows and Linux systems.
Here is the listing of C programming examples on Trees:
- C Programs on Binary Tree
- C Programs on Binary Search Tree
- C Programs on Tree
- C Programs on AVL Tree
- C Programs on Nodes of a Tree
- C Programs on BFS and DFS Traversals
- C Programs on Tree Traversal
- C Programs on Inorder Traversal of a Binary Tree
- C Programs on Preorder & Postorder Traversals
1. C Programs on Binary Tree
Program | Description |
---|---|
Binary Tree in C | C Program to Implement Binary Tree |
Threaded Binary Tree in C | C Program to Implement Threaded Binary Tree |
Splay Tree in C | C Program to Implement Splay Tree |
Count Number of Nodes in Binary Tree in C | C Program to Count the Number of Nodes in Binary Tree |
Sum of All Nodes in a Binary Tree in C | C Program to Find the Sum of All Nodes in a Binary Tree |
Height and Depth of Binary Tree in C | C Program to Print Height and Depth of Binary Tree |
Mirror Image of Binary Tree in C | C Program to Create Mirror Image of Binary Tree |
Double Order Traversal of Binary Tree in C | C Program to Implement Double Order Traversal of a Binary Tree |
Sorted Array to Balanced BST in C | C Program to Convert Sorted Array to Balanced BST |
Binary Tree to BST in C | C Program to Convert Binary Tree to Binary Search Tree |
C Program to Search a Node in Binary Tree | C Program to Search a Node in Binary Tree |
Max Distance b/w Two Nodes in a Binary Tree in C | C Program to Find Maximum Distance between Two Nodes in a Binary Tree |
C Program to Check if Binary Tree is Subtree of Another Tree | C Program to Check if Binary Tree is Subtree of Another Tree |
Balanced Binary Tree in C | C Program to Create a Balanced Binary Tree of the Incoming Data |
Largest Independent Set in Binary Tree in C | C Program to Find the Size of Largest Independent Set (LIS) in a Binary Tree |
2. C Programs on Binary Search Tree
Program | Description |
---|---|
Binary Search Tree in C | C Program to Implement Binary Search Tree |
Insertion in BST in C | C Program to Perform Insertion in Binary Search Tree |
Deletion in BST in C | C Program to Perform Deletion in Binary Search Tree |
C Program to Search an Element in BST | C Program to Perform Binary Search Tree Operations |
BST Search in C | C Program to Search an Element in a Tree |
Search Tree Element using Recursion in C | C Program to Search an Element in a Tree Recursively |
C Program to Find Min & Max Element in BST | C Program to Find Minimum and Maximum Element in Binary Search Tree |
Check if a Tree is BST in C | C Program to Check if a Tree is Binary Search Tree |
BST Left Rotation in C | C Program to Perform Left and Right Rotation on a Binary Search Tree |
Lowest Common Ancestor in C | C Program to Find the Lowest Common Ancestor of a Binary Search Tree |
Vertical Sum in BST in C | C Program to Find the Total Columns/Vertical Lines of a Binary Search Tree |
3. C Programs on Tree
Program | Description |
---|---|
Ternary Tree in C | C Program to Implement Ternary Tree |
Segment Tree in C | C Program to Implement Segment Tree |
Interval Tree in C | C Program to Implement Interval Tree |
Range Tree in C | C Program to Implement Range Tree |
B Tree in C | C Program to Implement a B Tree |
Create Tree in C | C Program to Construct a Tree and Perform Tree Operations |
Find Height of Tree using Recursion in C | C Program to Find the Height of Tree using Recursion |
Check if Two Trees are Mirror in C | C Program to Check if Two Trees are Mirror |
Create Mirror Tree in C | C Program to Create a Mirror Copy of a Tree |
Create Expression Tree from Postfix Expression in C | C Program to Create Expression Tree from Postfix Expression |
Maximum Independent Set Tree in C | C Program to Find the Largest Independent Set in Binary Tree |
4. C Programs on AVL Tree
Program | Description |
---|---|
AVL Tree in C | C Program to Implement AVL Tree |
BST is AVL Tree or Not in C | C Program to Check if a Binary Tree is an AVL Tree or Not |
AVL Tree Operations in C | C Program to Perform AVL Tree Operations |
5. C Programs on Nodes of a Tree
Program | Description |
---|---|
Sum of all Nodes in a Tree in C | C Program to Find the Sum of All Nodes in a Tree |
C Program to Count Leaf Nodes in a Tree | C Program to Count Leaf Nodes in a Tree |
C Program to Count Non-Leaf Nodes in a Tree | C Program to Count Non Leaf Nodes in a Tree |
Print all Paths from Root to Leaf in a Tree in C | C Program to Print all Paths from Root to Leaf in a Tree |
Print the Nodes at Odd Levels of a Tree in C | C Program to Print Only Odd Numbered Levels of a Tree |
Print All Nodes of Nth Level in Single Line in C | C Program to Print All Nodes of Nth Level in Single Line |
Print Left View of a Tree in C | C Program to Print Left View of a Tree |
Boundary Traversal of Binary Tree in C | C Program to Print Border of a Tree in Anticlockwise Direction |
Find Common Ancestor and Path in C | C Program to Find the Common Ancestor and Path |
Nearest Common Ancestor in C | C Program to Find the Nearest Common Ancestor |
Find Nearest Sibling of a Node in Tree in C | C Program to Find Nearest Sibling of a Node in Tree |
Sum of Nodes at Each Level of a Tree in C | C Program to Find the Summation of Node Values at Row or Level |
6. C Programs on BFS and DFS Traversals
Program | Description |
---|---|
BFS Program in c | C Program to Implement BFS |
Display Tree Nodes using BFS Traversal in C | C Program to Display Tree Nodes using BFS Traversal |
Mirror Tree using BFS Traversal in C | C Program to Create a Mirror Copy of a Tree and Display using BFS Traversal |
DFS Tree Traversal using Recursion in C | C Program for Depth First Binary Tree Search using Recursion |
DFS Tree Traversal without Recursion in C | C Program for Depth First Binary Tree Search without using Recursion |
7. C Programs on Tree Traversal
Program | Description |
---|---|
Tree Traversal using Recursion in C | C Program to Traverse the Tree using Recursion |
Tree Traversal without Recursion in C | C Program to Traverse the Tree without Recursion |
Level Order Traversal using Recursion in C | C Program for Level Order Traversal of a Tree using Recursion |
Spiral Order Traversal using Recursion in C | C Program for Spiral Order Traversal of a Tree using Recursion |
8. C Programs on Inorder Traversal of a Binary Tree
Program | Description |
---|---|
Find Nth Node of Inorder Traversal in C | C Program to Find Nth Node of Inorder Traversal |
Find Max Value in Tree using Inorder Traversal in C | C Program to Find Maximum Value in Tree using Inorder Traversal |
Display 2 Longest Distance Nodes using Inorder Traversal in C | C Program to Find Two Longest Distance Nodes using Inorder Traversal |
External Sorting using Btree & Inorder Traversal in C | C Program to Implement External Sorting using B Tree and Inorder Traversal |
Construct Binary Tree from Postorder & Inorder in C | C Program to Construct Binary Tree from Postorder and Inorder |
BST Deletion & Inorder Traversal in C | C Program to Construct a Binary Search Tree and Perform Deletion and Inorder Traversal |
Inorder Traversal using Recursion in C | C Program to Perform Inorder Traversal of a Binary Tree using Recursion |
Inorder Traversal without Recursion in C | C Program to Perform Inorder Traversal of a Binary Tree without using Recursion |
9. C Programs on Preorder & Postorder Traversals
Program | Description |
---|---|
Preorder Traversal using Recursion in C | C Program to Perform Preorder Traversal of a Binary Tree using Recursion |
Preorder Traversal without Recursion in C | C Program to Perform Preorder Traversal of a Binary Tree without using Recursion |
Postorder Traversal using Recursion in C | C Program to Perform Postorder Traversal of a Binary Tree using Recursion |
Postorder Traversal without Recursion in C | C Program to Perform Postorder Traversal of a Binary Tree without using Recursion |