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30 problems total

Array (1906)Sorting (442)Depth First Search (316)Database (301)Breadth First Search (241)Tree (241)Stack (172)Graph Theory (169)Linked List (81)Monotonic Stack (67)Queue (50)Recursion (48)Shortest Path (33)

All Topics(4301)Database(305)Java(0)Networking(0)Object Oriented Design(31)Programming Languages(5)System Design(0)Algorithms(3945)

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Title	Difficulty	Videos	Companies
Sudoku Solver	hard	-	adobe amazon apple
Trapping Rain Water	hard		adobe affirm airbnb
Wildcard Matching	hard	-	adobe amazon bloomberg
Text Justification	hard	-	airbnb amazon apple
Minimum Window Substring	hard		adobe airbnb amazon
Word Ladder 1 - Get Ladder Length	hard	-	affirm amazon apple
Word Break 2 - Construct a sentence	hard		amazon apple audible
Word Search 2 - Return All Words	hard		airbnb amazon apple
Basic Calculator 1	hard	-	adobe amazon bloomberg
Paint House 2 - N houses with k colors with no two adjacent houses with same color color	hard	-	facebook google linkedin
Alien Dictionary	hard		airbnb amazon apple
Expression Add Operators	hard	-	apple bytedance facebook
Find Median from Data Stream	hard		adobe amazon apple
Best Meeting Point	hard	-	amazon facebook google
Serialize and Deserialize Binary Tree	hard		amazon apple bloomberg
Number of Islands II	hard	-	amazon facebook google
Burst Balloons	hard	-	adobe amazon facebook
Shortest Distance from All Buildings	hard	-	amazon bytedance facebook
Longest Increasing Path in a Matrix	hard	-	adobe amazon apple
Reconstruct Itinerary	hard	-	amazon apple bloomberg
Frog Jump	hard	-	amazon apple bytedance
LFU Cache	hard	-	adobe alibaba amazon
Sliding Window Median	hard	-	amazon apple facebook
Word Abbreviation	hard	-	google grab snapchat
Smallest Range Covering Elements from K Lists	hard	-	amazon apple facebook
Design Search Autocomplete System	hard	-	amazon apple bloomberg
Max Stack	hard	-	amazon bloomberg facebook
Basic Calculator 3	hard	-	amazon apple bytedance
Similar String Groups	hard	-	amazon facebook google
Least Operators to Express Number	hard	-	snapchat

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