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POTD Solutions | 20 Nov’ 23 | K Sum Paths

Last Updated: 23 July 2025

View all POTD SolutionsWelcome to the daily solutions of our PROBLEM OF THE DAY (POTD). We will discuss the entire problem step-by-step and work towards developing an opti...read more

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Tree Traversals

GFG-POTD-Solutions

Tree Traversal Techniques in Python

Last Updated: 23 July 2025

A tree is a non-linear data structure or we can say that it is a type of hierarchical structure. It is like an inverted tree where roots are present at the top and leaf or...read more

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Tree Traversals

Time and Space Complexity Analysis of Tree Traversal Algorithms

Last Updated: 31 May 2023

Let us discuss the Time and Space complexity of different Tree Traversal techniques, such as Inorder Traversal, Preorder Traversal, Postorder Traversal, etc.Time Complexit...read more

Inorder Traversal

Preorder Traversal

PostOrder Traversal

Data Structures-Tree Traversals

Tree Traversals

Complexity-analysis

Preorder Traversal of Binary Tree

Last Updated: 08 December 2025

Preorder Traversal is a method to traverse a tree such that for each node, you first visit the node itself, then traverse its left subtree, and finally traverse its right ...read more

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Tree Traversals

Binary Search Tree (BST) Traversals – Inorder, Preorder, Post Order

Last Updated: 23 July 2025

Given a Binary Search Tree, The task is to print the elements in inorder, preorder, and postorder traversal of the Binary Search Tree. Input: A Binary Search TreeOutput: I...read more

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Binary Search Tree

Tree Traversals

Binary Tree Iterator for Inorder Traversal

Last Updated: 23 July 2025

Given a Binary Tree and an input array. The task is to create an Iterator that utilizes next() and hasNext() functions to perform Inorder traversal on the binary tree.Exam...read more

Inorder Traversal

Tree Traversals

Flatten a Binary Search Tree to convert the tree into a wave list in place only

Last Updated: 23 July 2025

Given a Binary Search Tree consisting of N distinct nodes, the task is to flatten the given Binary Search Tree to convert the tree into a wave list. A wave list arr[0..n-1...read more

Binary Search Tree

Inorder Traversal

Tree Traversals

Create a wave array from the given Binary Search Tree

Last Updated: 23 July 2025

Given a Binary Search Tree, the task is to create a wave array from the given Binary Search Tree. An array arr[0..n-1] is called a wave array if arr[0] = arr[1] = arr[2] =...read more

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Binary Search Tree

Inorder Traversal

Tree Traversals

Minimum distance between two given nodes in an N-ary tree

Last Updated: 23 July 2025

Given a N ary Tree consisting of N nodes, the task is to find the minimum distance from node A to node B of the tree.Examples:Input: 1 / \ 2 3 ...read more

Tree Traversals

Left and Right view of a Generic Tree

Last Updated: 23 July 2025

Given a Generic Tree consisting of N nodes, the task is to find the left and right views of the given generic Tree.Examples:Input: 1 / \ 2 3 ...read more

Tree Traversals

tree-level-order

Print all the paths from root to leaf, with a specified sum in Binary tree

Last Updated: 23 July 2025

Given a Binary tree and target sum, the task is to find all the possible paths from root to leaf that have the sum equal to the given sum.ExamplesInput: Output: [[10, 28]...read more

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Tree Traversals

Maximize sum of path from the Root to a Leaf node in N-ary Tree

Last Updated: 23 July 2025

Given a generic tree consisting of n nodes, the task is to find the maximum sum of the path from the root to the leaf node.Examples:Input:Output: 12Explanation: The path s...read more

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Tree Traversals

Maximum absolute difference between any two level sum in a N-ary Tree

Last Updated: 15 July 2025

Given an N-ary Tree having N nodes with positive and negative values and (N - 1) edges, the task is to find the maximum absolute difference of level sum in it.Examples:Inp...read more

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Tree Traversals

Count pairs of nodes having minimum distance between them equal to the difference of their distances from root

Last Updated: 23 July 2025

Given an N-ary Tree consisting of N nodes valued from [1, N], where node 1 is the root, the task is to count the pairs of nodes having minimum distance between them equal ...read more

Tree Traversals

Preorder, Postorder and Inorder Traversal of a Binary Tree using a single Stack

Last Updated: 23 July 2025

Given a binary tree, the task is to print all the nodes of the binary tree in Pre-order, Post-order, and In-order iteratively using only one stack traversal.Examples:Input...read more

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Inorder Traversal

Preorder Traversal

PostOrder Traversal

Tree Traversals

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