PRACTICE

Binary Search Tree Interview Questions

5 Binary Search Tree problems asked across FAANG and top tech companies. Approach hints, optimal solutions, and related problems.

Ready to try these in a real interview?

I'm Alex. I'll interview you on 2 problems like these at your level, ask follow-ups, and give you a scored report.

Start mock with Alex

Companies

Amazon2Apple2Atlassian2Google2Meta2Microsoft2Anduril1LinkedIn1Netflix1Uber1

Topics

Array 240Hash Table 113String 112Depth-First Search 73Sorting 66Dynamic Programming 65Breadth-First Search 56Math 49Design 46Binary Search 44Greedy 43Tree 41Two Pointers 39Heap 35Stack 32Graph 28Matrix 28Sliding Window 26Binary Tree 23Backtracking 22Bit Manipulation 20Prefix Sum 20Simulation 20Union Find 19Linked List 18Queue 13Trie 12Counting 10Recursion 10Divide and Conquer 9Monotonic Stack 9Ordered Set 9Topological Sort 9Data Stream 8Database 6Enumeration 6Binary Search Tree 5Doubly-Linked List 5Geometry 5+22 more

✓ 0ProblemsDifficultyAsked atPractice

98.Validate Binary Search Tree

Depth-First SearchBinary Search TreeTree

Medium+3▶ Mock

Medium

+3

🔒 LeetCode▶ Mock

230.Kth Smallest Element in a BST

Depth-First SearchBinary Search TreeTree

Medium+2▶ Mock

Medium

+2

🔒 LeetCode▶ Mock

235.Lowest Common Ancestor of a Binary Search Tree

TreeDepth-First SearchBinary Search Tree

Medium▶ Mock

Medium

🔒 LeetCode▶ Mock

272.Closest Binary Search Tree Value II

Two PointersStackTree

Hard▶ Mock

Hard

🔒 LeetCode▶ Mock

701.Insert into a Binary Search Tree

TreeBinary Search TreeBinary Tree

Medium▶ Mock

Medium

🔒 LeetCode▶ Mock