Top 50 Binary Search Tree Coding Problems for Interviews Last Updated : 23 Jul, 2025 Suggest changes Share Like Article Like Report 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", we have collected a list of 50 coding problems, these problems are designed to boost your problem-solving abilities and prepare you for interviews. By working on these problems, you can become better at using BSTs and excel in coding interviews. Join us on this learning journey and become a pro at solving Binary Search Tree problems! Top 50 Binary Search Tree Coding Problems for Interviews Binary Search Tree (BST) Coding Problems for Interviews: Level 1Problems Solve A program to check if a Binary Tree is BST or not Solve Count BST nodes that lie in a given range Solve Searching in Binary Search Tree (BST) Solve Lowest Common Ancestor in a Binary Search Tree. Solve K’th Largest Element in BST when modification to BST is not allowed Solve Find the node with minimum value in a Binary Search Tree Solve Inorder Successor in Binary Search Tree Solve Find median of BST Solve Binary Tree to Binary Search Tree Conversion Solve Count pairs from two BSTs whose sum is equal to a given value x Solve Binary Search Tree (BST) Coding Problems for Interviews: Level 2Problems Solve Inorder predecessor and successor for a given key in BST Solve Check if a given Binary Tree is a Heap Solve Find the closest element in Binary Search Tree Solve Number of Unique BST with a given key | Dynamic Programming Solve Check whether BST contains Dead End or not Solve Print Common Nodes in Two Binary Search Trees Solve Sorted Array to Balanced BST Solve Find postorder traversal of BST from preorder traversal Solve Balance a Binary Search Tree Solve Find a pair with given sum in BST Solve Check if a given array can represent Preorder Traversal of Binary Search Tree Solve Add all greater values to every node in a given BST Solve Replace every element with the least greater element on its right Solve Sum of Descendant Nodes Below Target in Binary Search Tree Solve Find the maximum sum leaf to root path in a Binary Tree Solve Leaf nodes from Preorder of a Binary Search Tree Solve Convert BST to Max Heap Solve Transform a BST to greater sum tree Solve Remove BST keys outside the given range Solve Count of pairs violating BST property Solve Maximum product of an increasing subsequence of size 3 Solve Lowest Common Ancestor in a Binary Search Tree. Solve Pair with minimum absolute difference in BST Solve Print Nodes in Top View of Binary Tree Solve Deletion in Binary Search Tree (BST) Solve Find the largest BST subtree in a given Binary Tree | Set 3 Solve K’th smallest element in BST using O(1) Extra Space Solve Leaf nodes from Preorder of a Binary Search Tree (Using Recursion) Solve Two nodes of a BST are swapped, correct the BST Solve Find a pair with given sum in a Balanced BST Solve Binary Search Tree (BST) Coding Problems for Interviews: Level 3Problems Solve Merge two BSTs with limited extra space Solve Optimal Binary Search Tree | DP-24 Solve Insertion in an AVL Tree Solve Sorted Linked List to Balanced BST Solve Find the minimum Sub-tree with target sum in a Binary search tree Solve Merge Two Balanced Binary Search Trees Solve Inversion count in Array Using Self-Balancing BST Solve Print BST keys in given Range | O(1) Space Solve Maximum Unique Element in every subarray of size K Solve Floor and Ceil from a BST Solve Related Articles: Top 50 Array Coding Problems for InterviewsTop 50 String Coding Problems for InterviewsTop 50 Tree Coding Problems for InterviewsTop 50 Graph Coding Problems for InterviewsTop 50 Sorting Coding Problems for Interviews T tarunsarawgi_gfg Follow Article Tags : DSA interview-preparation Binary Search Trees GFG Sheets DSA Sheet +1 More Explore DSA FundamentalsLogic Building Problems 2 min read Analysis of Algorithms 1 min read Data StructuresArray Data Structure 3 min read String in Data Structure 2 min read Hashing in Data Structure 2 min read Linked List Data Structure 2 min read Stack Data Structure 2 min read Queue Data Structure 2 min read Tree Data Structure 2 min read Graph Data Structure 3 min read Trie Data Structure 15+ min read AlgorithmsSearching Algorithms 2 min read Sorting Algorithms 3 min read Introduction to Recursion 14 min read Greedy Algorithms 3 min read Graph Algorithms 3 min read Dynamic Programming or DP 3 min read Bitwise Algorithms 4 min read AdvancedSegment Tree 2 min read Binary Indexed Tree or Fenwick Tree 15 min read Square Root (Sqrt) Decomposition Algorithm 15+ min read Binary Lifting 15+ min read Geometry 2 min read Interview PreparationInterview Corner 3 min read GfG160 3 min read Practice ProblemGeeksforGeeks Practice - Leading Online Coding Platform 6 min read Problem of The Day - Develop the Habit of Coding 5 min read My Profile ${profileImgHtml} My Profile Edit Profile My Courses Join Community Transactions Logout Like