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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
Combine Two Tables Problem	easy	-	adobe amazon apple
Second Highest Salary Problem	medium	-	adobe amazon apple
Nth Highest Salary Problem	medium	-	adobe amazon apple
Employees Earning More Than Their Managers Problem	easy	-	adobe amazon apple
Department Top Three Salaries Problem	hard	-	adobe amazon google