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Top 50 Binary Search Tree Coding Problems for Interviews

Last Updated: 23 July 2025

Binary Search Trees (BST) are like organized lists that help find, add, and remove items quickly. In our article "Top 50 Binary Search Tree Coding Problems for Interviews"...read more

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DSA

interview-preparation

Binary Search Trees

GFG Sheets

DSA Sheet

C Program for Binary Search Tree

Last Updated: 13 December 2025

ABinary Search Tree(BST) is a special type of binary tree that maintains its elements in a sorted order. For every node in the BST:All nodes in its left subtree have value...read more

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C Language

Binary Search Trees

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

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

What is Binary Search Tree

Last Updated: 23 July 2025

A binary search tree (BST) is a binary tree in which the left subtree of a node contains only nodes with less value and the right subtree of a node contains only nodes wit...read more

Definitions and Meanings

Binary Search Trees

Maximum absolute difference between the sibling nodes of given BST

Last Updated: 23 July 2025

Given a BST (Binary Search Tree) with N Nodes, the task is to find the maximum absolute difference between the sibling nodes.Two nodes are said to be siblings if they are ...read more

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Tree

Technical Scripter

Technical Scripter 2022

DSA

Binary Search Trees

Search N elements in an unbalanced Binary Search Tree in O(N * logM) time

Last Updated: 23 July 2025

Given an Unbalanced binary search tree (BST) of M nodes. The task is to find the N elements in the Unbalanced Binary Search Tree in O(N*logM) time.Examples:Input: search[]...read more

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Tree

Technical Scripter

Technical Scripter 2022

DSA

Binary Search Trees

Sum of all nodes with smaller values at a distance K from a given node in a BST

Last Updated: 23 July 2025

Given a Binary Search Tree, a target node in the BST, and an integer value K, the task is to find the sum of all nodes that are at a distance K from the target node whose ...read more

Sum of BST Nodes Within a Given Range

Last Updated: 11 October 2025

Given the root of a Binary Search Tree containing n nodes, and two integers l and r, find the sum of all node values that lie within the inclusive range [l, r].Examples:In...read more

Iterative approach to check if a Binary Tree is BST or not

Last Updated: 23 July 2025

Given a Binary Tree, the task is to check if the given binary tree is a Binary Search Tree or not. If found to be true, then print "YES". Otherwise, print "NO".Examples:In...read more

Kth Smallest element in a Perfect Binary Search Tree

Last Updated: 15 July 2025

Given a Perfect BST with N nodes and an integer K, the task is to find the Kth smallest element is present in the tree.Example:Input:K = 3, N = 15 50 ...read more

DSA

Complete Binary Tree

interview-preparation

Binary Search Trees

median-finding

Check if the Binary Tree contains a balanced BST of size K

Last Updated: 15 July 2025

Given a Binary Tree and a positive integer K. The task is to check whether the Balanced BST of size K exists in a given Binary Tree or not. If it exists then print “Yes” e...read more

Binary Search Tree | Set 3 (Iterative Delete)

Last Updated: 15 July 2025

Given a binary search tree and a node of the binary search tree, the task is to delete the node from the Binary Search tree Iteratively.Here are the three cases that arise...read more

Double Threaded Binary Search Tree

Last Updated: 02 December 2023

Double Threaded Binary Search Tree: is a binary search tree in which the nodes are not every left NULL pointer points to its inorder predecessor and the right NULL pointer...read more

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Tree

Advanced Data Structure

Check if value exists in level-order sorted complete binary tree

Last Updated: 12 July 2025

Given a level-order sorted complete binary tree, the task is to check whether a key exists in it or not. A complete binary tree has every level except possibly the last, c...read more

DSA

Binary Search

Binary Search Trees

Find Leftmost and Rightmost node of BST from its given preorder traversal

Last Updated: 12 July 2025

Given a preorder sequence of the binary search tree of N nodes. The task is to find its leftmost and rightmost nodes.Examples:Input : N = 5, preorder[]={ 3, 2, 1, 5, 4 }Ou...read more

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