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Database57 Array37 String20 Hash Table17 Math11 Sorting9 Two Pointers6 Binary Search5 Counting4 Design4 Linked List4 Simulation4 Binary Tree3 Bit Manipulation3 Data Stream3 All topics

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TitleSolutionAcceptDifficultyTopics

170. Two Sum III - Data structure designVideoPremium

Solution39.1%Easy

Array, Data Stream +3· 2 companies

246. Strobogrammatic NumberVideoPremium

Solution47.6%Easy

Hash Table, String +1· 2 companies

408. Valid Word AbbreviationVideoPremium

Solution37.0%Easy

String, Two Pointers· 7 companies

1099. Two Sum Less Than KVideoPremium

Solution61.9%Easy

Array, Binary Search +2· 1 company

1826. Faulty SensorVideoPremium

Solution50.2%Easy

Array, Two Pointers· 1 company

3667. Sort Array By Absolute ValueVideoPremium

Solution86.7%Easy

Array, Math +2· 1 company

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