**‘Recent Articles’ on Binary Tree**

**Topic :**

- Tree Traversals
- Level Order Tree Traversal
- Print level order traversal line by line | Set 1
- Inorder Tree Traversal without Recursion
- Inorder Tree Traversal without recursion and without stack!
- Iterative Preorder Traversal
- Morris traversal for Preorder
- Iterative Postorder Traversal | Set 1 (Using Two Stacks)
- Iterative Postorder Traversal | Set 2 (Using One Stack)
- Reverse Level Order Traversal
- Print Postorder traversal from given Inorder and Preorder traversals
- Level order traversal line by line | Set 2 (Using Two Queues)
- Diagonal Traversal of Binary Tree
- Inorder Non-threaded Binary Tree Traversal without Recursion or Stack
- Check if leaf traversal of two Binary Trees is same?
- Print a Binary Tree in Vertical Order | Set 1
- Print a Binary Tree in Vertical Order | Set 2 (Hashmap based Method)
- Boundary Traversal of binary tree
- Perfect Binary Tree Specific Level Order Traversal
- Perfect Binary Tree Specific Level Order Traversal | Set 2
- If you are given two traversal sequences, can you construct the binary tree?

- Construct Tree from given Inorder and Preorder traversals
- Construct a tree from Inorder and Level order traversals
- Construct Complete Binary Tree from its Linked List Representation
- Construct Full Binary Tree from given preorder and postorder traversals
- Construct a special tree from given preorder traversal
- Construct tree from ancestor matrix
- Construct Ancestor Matrix from a Given Binary Tree
- Construct Special Binary Tree from given Inorder traversal
- Construct Binary Tree from given Parent Array representation
- Construct a Binary Tree from Postorder and Inorder
- Create a Doubly Linked List from a Ternary Tree
- Creating a tree with Left-Child Right-Sibling Representation
- Convert a given Binary Tree to Doubly Linked List | Set 1
- Convert a given Binary Tree to Doubly Linked List | Set 2
- Convert a given Binary Tree to Doubly Linked List | Set 3
- Convert a given Binary Tree to Doubly Linked List | Set 4
- Convert an arbitrary Binary Tree to a tree that holds Children Sum Property
- Convert a Binary Tree to Threaded binary tree | Set 1 (Using Queue)
- Convert a Binary Tree to Threaded binary tree | Set 2 (Efficient)
- Convert left-right representation of a binary tree to down-right
- Convert a given tree to its Sum Tree
- Change a Binary Tree so that every node stores sum of all nodes in left subtree
- Write an Efficient Function to Convert a Binary Tree into its Mirror Tree
- Convert a normal BST to Balanced BST
- Convert a Binary Tree into Doubly Linked List in spiral fashion
- Convert a Binary Tree to a Circular Doubly Link List
- Convert a tree to forest of even nodes
- Convert a given Binary tree to a tree that holds Logical AND property
- Convert Ternary Expression to a Binary Tree

- Write a program to Delete a Tree
- Write a Program to Find the Maximum Depth or Height of a Tree
- Write Code to Determine if Two Trees are Identical
- Write a program to Calculate Size of a tree
- Root to leaf path sum equal to a given number
- How to determine if a binary tree is height-balanced?
- Diameter of a Binary Tree
- Check for Children Sum Property in a Binary Tree
- Program to count leaf nodes in a binary tree
- The Great Tree-List Recursion Problem
- Lowest Common Ancestor in a Binary Search Tree
- Given a binary tree, print out all of its root-to-leaf paths one per line
- Populate Inorder Successor for all nodes
- Connect nodes at same level using constant extra space
- Connect nodes at same level
- Check if a binary tree is subtree of another binary tree | Set 1
- Check if a given Binary Tree is SumTree
- Print Ancestors of a given node in Binary Tree
- Get Level of a node in a Binary Tree
- Print nodes at k distance from root
- Foldable Binary Trees
- Maximum width of a binary tree
- Double Tree
- Given a binary tree, print all root-to-leaf paths
- Linked complete binary tree & its creation
- Check whether a given Binary Tree is Complete or not | Set 1 (Iterative Solution)
- Find the maximum sum leaf to root path in a Binary Tree
- Vertical Sum in a given Binary Tree | Set 1
- Sum of all the numbers that are formed from root to leaf paths
- Find next right node of a given key
- Deepest left leaf node in a binary tree
- Extract Leaves of a Binary Tree in a Doubly Linked List
- Remove all nodes which don’t lie in any path with sum>= k
- Print Left View of a Binary Tree
- Check if all leaves are at same level
- Find depth of the deepest odd level leaf node
- Difference between sums of odd level and even level nodes of a Binary Tree
- Custom Tree Problem
- Iterative Method to find Height of Binary Tree
- Tree Isomorphism Problem
- Check if a binary tree is subtree of another binary tree | Set 2
- Find the maximum path sum between two leaves of a binary tree
- Threaded Binary Tree
- Reverse alternate levels of a perfect binary tree
- Print Right View of a Binary Tree
- Print all nodes at distance k from a given node
- Find distance between two given keys of a Binary Tree
- Lowest Common Ancestor in a Binary Tree | Set 1
- Print all nodes that don’t have sibling
- Check if a given Binary Tree is height balanced like a Red-Black Tree
- Print all nodes that are at distance k from a leaf node
- Find the closest leaf in a Binary Tree
- Diagonal Sum of a Binary Tree
- Bottom View of a Binary Tree
- Print Nodes in Top View of Binary Tree
- Serialize and Deserialize an N-ary Tree
- Check if a given graph is tree or not
- Print nodes between two given level numbers of a binary tree
- Find Height of Binary Tree represented by Parent array
- Minimum no. of iterations to pass information to all nodes in the tree
- Check if two nodes are cousins in a Binary Tree
- Find Minimum Depth of a Binary Tree
- Maximum Path Sum in a Binary Tree
- Expression Tree
- Iterative Search for a key ‘x’ in Binary Tree
- Find maximum (or minimum) in Binary Tree
- Find sum of all left leaves in a given Binary Tree
- Remove nodes on root to leaf paths of length < K

If you like GeeksforGeeks and would like to contribute, you can also write an article and mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above