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18 problems total

Array (1905)Sorting (440)Depth First Search (316)Database (301)Breadth First Search (241)Tree (240)Stack (172)Graph Theory (169)Linked List (81)Monotonic Stack (67)Queue (50)Recursion (48)Shortest Path (33)

All Topics(4301)Database(305)Networking(0)Object Oriented Design(31)Programming Languages(5)System Design(0)Algorithms(3944)

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Title	Difficulty	Videos	Companies
Binary Tree Bottom View	medium	-	yelp
Binary Tree Level Order Traversal	medium		microsoft
Binary Tree Top View	medium	-
Create linked lists of all the nodes at each depth for a Binary Tree	medium	-
Find right-most cousin in a binary tree	medium	-
Find Vertical Sum in binary Tree	medium	-
Generate Parentheses	medium	-	adobe alibaba amazon
Print or return nodes between two given levels in a binary tree	medium	-
Validate Binary Search Tree	medium		adobe amazon apple
Binary Tree Level Order Traversal - Level by Level	medium		adobe amazon apple
Binary Tree Traversal - Zigzag Level Order Traversal	medium	-	amazon apple bloomberg
Find Largest Value in Each Tree Row	medium		amazon apple facebook
Maximum Width of Binary Tree	medium	-	amazon bloomberg ebay
Maximum Level Sum of a Binary Tree	medium	-	amazon google
Reverse Odd Levels of Binary Tree	medium
Minimum Number of Operations to Sort a Binary Tree by Level	medium
Kth Largest Sum in a Binary Tree	medium
Level of Binary Tree with minimum sum	medium	-