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TitleDifficultyVideosCompanies
Binary Tree Path Sum - Find all paths between any two nodesmedium-
Check if Tree is Full Binary Treemedium-
Count distinct binary trees for a given number of nodesmedium-
Maximum Number of Matching Indices After Right Shiftseasy-
Maximum Product of the Length of Two Palindromic Subsequencesmedium-
Range XOR Queries with Subarray Reversalshard-
Select a Random Node from a Binary Tree with Equal Probabilitymedium-
Binary Tree Inorder Traversaleasy-
alibabaamazonapple
Unique BSTs 2 - Generatemedium-
adobeamazonapple
Unique BSTs 1 - Countmedium-
adobeamazonapple
Validate Binary Search Treemedium
adobeamazonapple
Recover Binary Search Treemedium-
amazonbloombergfacebook
Same Treeeasy
amazonapplebloomberg
Symmetric Binary Treeeasy-
adobealibabaamazon
Binary Tree Level Order Traversal - Level by Levelmedium
adobeamazonapple
Binary Tree Traversal - Zigzag Level Order Traversalmedium-
amazonapplebloomberg
Maximum Depth of Binary Treeeasy
adobeamazonapple
Construct Binary Tree from Inorder and Preorder Traversalmedium
adobeamazonapple
Construct Binary Tree from Inorder and Postorder Traversalmedium-
amazonbloombergfacebook
Binary Tree Traversal - Level Order Bottom upmedium-
adobeamazonapple
Convert Sorted Array to height-balanced Binary Search Treeeasy
airbnbamazonapple
Convert Sorted List into a height-balanced Binary search Treemedium-
amazonbloombergfacebook
Balanced Binary Treeeasy-
adobeamazonapple
Minimum Depth of Binary Treeeasy-
amazonapplefacebook
Path Sum 1 - Check if root to leaf path existseasy-
adobeamazonapple
Path Sum 2 - find all root to leaf pathsmedium-
adobeamazonapple
Flatten binary tree to linked list in order of preorder traversalmedium-
adobeamazonapple
Populate next pointer to right node in Perfect Binary Treemedium-
amazonapplebloomberg
Populate next pointer to right node in Binary Treemedium-
amazonbloombergfacebook
Binary Tree Path Sum - Maximum between any two nodeshard
adobeamazonappdynamics
Sum Root to Leaf Numbersmedium-
amazonbloombergebay
Binary Tree Preorder Traversaleasy-
amazonbloombergcisco
Binary Tree Postorder Traversaleasy-
adobeamazonfacebook
Binary Tree Upside Downmedium-
googlelinkedin
Binary Search Tree BST Inorder Iteratormedium-
alibabaamazonapple
Binary Tree Right Side Viewmedium-
adobeamazonapple
Count Complete Tree Nodeseasy-
amazonbloombergbytedance
Invert Binary Treeeasy
amazonapplebloomberg
Kth Smallest Element in a BSTmedium
affirmamazonapple
Lowest Common Ancestor of a Binary Search Treemedium
adobeamazonbloomberg
Lowest Common Ancestor of a Binary Treemedium
adobeairbnbamazon
Count Univalue Subtreesmedium-
amazonbloombergbox
Prune Unary nodes to form Full Binary Treemedium-
yahoo
Verify Preorder Sequence in Binary Search Treemedium-
mathworksuberzenefits
Binary Tree Path - All root to leaf pathseasy-
adobeamazonapple
Closest Binary Search Tree Valueeasy-
amazonbloombergfacebook
Closest Binary Search Tree Value IIhard-
amazonfacebookforusall
Inorder Successor in Binary Search Treemedium-
amazonbloombergcitadel
Serialize and Deserialize Binary Treehard
amazonapplebloomberg
Binary Tree Longest Consecutive Sequencemedium-
amazonfacebookgoogle
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