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Binary Tree

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Count the number of Nodes in a Binary Tree in Constant Space

Last Updated: 29 April 2024

Given a binary tree having N nodes, count the number of nodes using constant O(1) space. This can be done by simple traversals like- Preorder, InOrder, PostOrder, and Leve...read more

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threaded-binary-tree

morris-traversal

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Validate the Binary Tree Nodes

Last Updated: 06 December 2023

Given N nodes numbered from 0 to n-1, also given the E number of directed edges, determine whether the given nodes all together form a single binary tree or not.Examples:I...read more

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Geeks Premier League 2023

Find number of path with same moves in full Binary Tree

Last Updated: 23 March 2024

Consider a Binary Tree having N nodes having root equal to 1. In which for any node X, the left and right child are 2*X and ((2*X) + 1). Then in such a Binary Tree, there ...read more

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Geeks Premier League 2023

Minimizing Signal Propagation Time in a Binary Tree

Last Updated: 04 December 2023

Given a binary tree and a source node "start" which transmits a network signal. The signal propagates to neighboring nodes every second, the task is to determine the minim...read more

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Geeks Premier League 2023

POTD Solutions | 15 Oct' 23 | Normal BST to Balanced BST

Last Updated: 22 November 2023

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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Competitive Programming

Binary Search Trees

GFG-POTD-Solutions

Maximum number in Binary tree of binary values

Last Updated: 18 January 2024

Given a binary tree consisting of nodes, each containing a binary value of either 0 or 1, the task is to find the maximum decimal number that can be formed by traversing f...read more

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Geeks Premier League 2023

Maximizing Robbery in Binary Tree Houses without Alerting Police

Last Updated: 18 December 2023

There are Houses arranged in the form of a Binary tree. There is only one entrance to the houses which is the root of a tree. It will automatically contact the police if t...read more

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Algorithms-Dynamic Programming

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POTD Solutions | 20 Nov’ 23 | K Sum Paths

Last Updated: 28 April 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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Competitive Programming

Tree Traversals

GFG-POTD-Solutions

Maximum Sum Level Except Triangular Number in Binary Tree

Last Updated: 23 April 2024

Given a Binary tree, Then the task is to output the maximum sum at any level excluding Triangular numbers. Xth Triangular numbers is the sum of starting X natural numbers,...read more

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Geeks Premier League 2023

Paths of Triangular Number in a Binary Tree

Last Updated: 24 February 2024

Given a Binary Tree, the task is to output the Count of the number of paths formed by only a Triangular number. Xth Triangular number is the sum of the first X natural num...read more

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Preorder Traversal

triangular-number

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Ceil in a Binary Search Tree Python

Last Updated: 31 May 2024

In a Binary Search Tree (BST), the ceiling of a given value is the smallest element in the tree that is greater than or equal to the given value. Finding the ceiling in a ...read more

Binary Tree Traversal

Last Updated: 27 December 2024

Binary trees are fundamental data structures in computer science and understanding their traversal is crucial for various applications. Traversing a binary tree means visi...read more

Checking and Printing Binary Tree

Last Updated: 22 May 2024

A binary tree is a fundamental data structure in computer science that hierarchically organizes elements. Each node in the tree can have at most two child nodes: a left ch...read more

Check Symmetrical Binary Tree using JavaScript

Last Updated: 14 June 2024

Given a binary tree, our task is to check whether it is Symmetrical Binary tree. In other words, we need to check whether the binary tree is a mirror of itself.Example: In...read more

Web Technologies

JavaScript Programs

Binary Tree Representation

Last Updated: 07 October 2024

Binary tree is a tree data structure (non-linear) in which each node can have at most two children which are referred to as the left child and the right child. The topmost...read more

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