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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

Easy · Premium · 17 results

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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

266. Palindrome PermutationVideoPremium

Solution68.6%Easy

Bit Manipulation, Hash Table +1· 5 companies

359. Logger Rate LimiterVideoPremium

Solution76.8%Easy

Data Stream, Design +1· 21 companies

734. Sentence SimilarityVideoPremium

Solution44.5%Easy

Array, Hash Table +1· 1 company

760. Find Anagram MappingsVideoPremium

Solution83.8%Easy

Array, Hash Table· 1 company

1086. High FiveVideoPremium

Solution74.5%Easy

Array, Hash Table +2· 2 companies

1133. Largest Unique NumberVideoPremium

Solution71.3%Easy

Array, Hash Table +1· 1 company

1165. Single-Row KeyboardVideoPremium

Solution87.6%Easy

Hash Table, String· 1 company

1213. Intersection of Three Sorted ArraysVideoPremium

Solution80.2%Easy

Array, Binary Search +2· 2 companies

1426. Counting ElementsVideoPremium

Solution60.9%Easy

Array, Hash Table· 1 company

2229. Check if an Array Is ConsecutiveVideoPremium

Solution61.6%Easy

Array, Hash Table +1

3032. Count Numbers With Unique Digits IIVideoPremium

Solution87.4%Easy

Dynamic Programming, Hash Table +1· 1 company

3063. Linked List FrequencyVideoPremium

Solution85.8%Easy

Counting, Hash Table +1

3450. Maximum Students on a Single BenchVideoPremium

Solution87.8%Easy

Array, Hash Table

3581. Count Odd Letters from NumberVideoPremium

Solution85.1%Easy

Counting, Hash Table +2

3662. Filter Characters by FrequencyPremium

Solution86.2%Easy

Counting, Hash Table +1· 1 company

Showing 1–17 of 17