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12 problems total

Array (174)Sorting (45)Depth First Search (44)Tree (41)Breadth First Search (35)Linked List (28)Stack (27)Recursion (18)Graph Theory (12)Monotonic Stack (8)Queue (6)Shortest Path (2)

All Topics(4301)Database(0)Java(0)Networking(0)Object Oriented Design(1)System Design(0)Algorithms(522)

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Title	Difficulty	Videos	Companies
Check if words chain to form a circle	medium	-	dropbox
Find if there is a path between two vertices in a directed graph	easy	-	google facebook amazon
Course Schedule 2 - Get Ordered Courses	medium	-	airbnb amazon apple
Longest Increasing Path in a Matrix	hard	-	adobe amazon apple
Reconstruct Itinerary	hard	-	amazon apple bloomberg
Cheapest Flights Within K Stops Problem	medium	-	airbnb amazon bloomberg
Most Stones Removed with Same Row or Column	medium		google
Find the City With the Smallest Number of Neighbors at a Threshold Distance Problem	medium		uber
Remove Max Number of Edges to Keep Graph Fully Traversable	hard	-
Checking Existence of Edge Length Limited Paths	hard	-
Checking Existence of Edge Length Limited Paths II	hard	-
Find if Path Exists in Graph	easy