PRACTICE

Binary Tree Interview Questions

23 Binary 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
🔒

to save your progress.

Companies

Topics

Binary Tree 23
Binary TreeClear all
124.Binary Tree Maximum Path Sum
Dynamic ProgrammingTreeDepth-First Search
Hard▶ Mock
103.Binary Tree Zigzag Level Order Traversal
TreeBreadth-First SearchBinary Tree
Medium▶ Mock
2385.Amount of Time for Binary Tree to Be Infected
Hash TableTreeDepth-First Search
Medium▶ Mock
94.Binary Tree Inorder Traversal
StackTreeDepth-First Search
Easy▶ Mock
144.Binary Tree Preorder Traversal
StackTreeDepth-First Search
Easy▶ Mock
314.Binary Tree Vertical Order Traversal
Hash TableTreeDepth-First Search
Medium▶ Mock
337.House Robber III
Dynamic ProgrammingTreeDepth-First Search
Medium▶ Mock
1644.Lowest Common Ancestor of a Binary Tree II
TreeDepth-First SearchBinary Tree
Medium▶ Mock
1650.Lowest Common Ancestor of a Binary Tree III
Hash TableTwo PointersTree
Medium▶ Mock
1676.Lowest Common Ancestor of a Binary Tree IV
Hash TableTreeDepth-First Search
Medium▶ Mock
2096.Step-By-Step Directions From a Binary Tree Node to Another
StringTreeDepth-First Search
Medium▶ Mock
987.Vertical Order Traversal of a Binary Tree
Hash TableTreeDepth-First Search
Hard▶ Mock
Populating Next Right Pointers in Each Node
Linked ListTreeDepth-First Search
Medium+1▶ Mock
110.Balanced Binary Tree
TreeDepth-First SearchBinary Tree
Easy▶ Mock
199.Binary Tree Right Side View
TreeDepth-First SearchBreadth-First Search
Medium▶ Mock
257.Binary Tree Paths
StringBacktrackingTree
Easy▶ Mock
272.Closest Binary Search Tree Value II
Two PointersStackTree
Hard▶ Mock
437.Path Sum III
TreeDepth-First SearchBinary Tree
Medium▶ Mock
543.Diameter of Binary Tree
TreeDepth-First SearchBinary Tree
Easy▶ Mock
701.Insert into a Binary Search Tree
TreeBinary Search TreeBinary Tree
Medium▶ Mock
968.Binary Tree Cameras
Dynamic ProgrammingTreeDepth-First Search
Hard▶ Mock
1145.Binary Tree Coloring Game
TreeDepth-First SearchBinary Tree
Medium▶ Mock
2265.Count Nodes Equal to Average of Subtree
TreeDepth-First SearchBinary Tree
Medium▶ Mock

Practice with a Mock Interview

Solve these Binary Tree problems under real interview pressure with our AI interviewer.

Start Mock Interview →