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Problems

40 problems

Has videoPremium onlyReset
Array301Database212Hash Table116String116Depth-First Search78Math78Dynamic Programming76Sorting64Tree63Breadth-First Search53Greedy52Binary Search50Binary Tree48Two Pointers40Matrix39All topics

Premium · 40 results

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TitleSolutionAcceptDifficultyTopics
161. One Edit DistanceVideoPremium
Solution34.4%Medium
String, Two Pointers· 8 companies
170. Two Sum III - Data structure designVideoPremium
Solution39.1%Easy
Array, Data Stream +3· 2 companies
186. Reverse Words in a String IIVideoPremium
Solution56.6%Medium
String, Two Pointers· 4 companies
244. Shortest Word Distance IIVideoPremium
Solution62.8%Medium
Array, Design +3· 4 companies
246. Strobogrammatic NumberVideoPremium
Solution47.6%Easy
Hash Table, String +1· 2 companies
251. Flatten 2D VectorVideoPremium
Solution50.5%Medium
Array, Design +2· 4 companies
253. Meeting Rooms IIVideoPremium
Solution52.6%Medium
Array, Greedy +4· 42 companies
259. 3Sum SmallerVideoPremium
Solution51.4%Medium
Array, Binary Search +2· 7 companies
272. Closest Binary Search Tree Value IIVideoPremium
Solution61.1%Hard
Binary Search Tree, Binary Tree +5· 3 companies
277. Find the CelebrityVideoPremium
Solution48.9%Medium
Graph, Interactive +1· 12 companies
360. Sort Transformed ArrayVideoPremium
Solution58.0%Medium
Array, Math +2· 3 companies
408. Valid Word AbbreviationVideoPremium
Solution37.0%Easy
String, Two Pointers· 7 companies
723. Candy CrushVideoPremium
Solution77.6%Medium
Array, Matrix +2· 11 companies
1055. Shortest Way to Form StringVideoPremium
Solution61.6%Medium
Binary Search, Greedy +2· 3 companies
1099. Two Sum Less Than KVideoPremium
Solution61.9%Easy
Array, Binary Search +2· 1 company
1214. Two Sum BSTsVideoPremium
Solution68.2%Medium
Binary Search, Binary Search Tree +5· 1 company
1229. Meeting SchedulerVideoPremium
Solution55.3%Medium
Array, Sorting +1· 11 companies
1265. Print Immutable Linked List in ReverseVideoPremium
Solution94.0%Medium
Linked List, Recursion +2
1570. Dot Product of Two Sparse VectorsVideoPremium
Solution89.9%Medium
Array, Design +2· 12 companies
1634. Add Two Polynomials Represented as Linked ListsVideoPremium
Solution61.1%Medium
Linked List, Math +1· 1 company
1650. Lowest Common Ancestor of a Binary Tree IIIVideoPremium
Solution83.0%Medium
Binary Tree, Hash Table +2· 10 companies
1826. Faulty SensorVideoPremium
Solution50.2%Easy
Array, Two Pointers· 1 company
1842. Next Palindrome Using Same DigitsVideoPremium
Solution54.2%Hard
String, Two Pointers· 1 company
1868. Product of Two Run-Length Encoded ArraysVideoPremium
Solution59.6%Medium
Array, Two Pointers· 2 companies
1885. Count Pairs in Two ArraysVideoPremium
Solution60.5%Medium
Array, Binary Search +2· 2 companies
2046. Sort Linked List Already Sorted Using Absolute ValuesVideoPremium
Solution67.1%Medium
Linked List, Sorting +1
2330. Valid Palindrome IVVideoPremium
Solution75.8%Medium
String, Two Pointers· 2 companies
2422. Merge Operations to Turn Array Into a PalindromeVideoPremium
Solution69.0%Medium
Array, Greedy +1· 5 companies
2604. Minimum Time to Eat All GrainsVideoPremium
Solution40.8%Hard
Array, Binary Search +2· 1 company
2674. Split a Circular Linked ListVideoPremium
Solution78.1%Medium
Linked List, Two Pointers
2838. Maximum Coins Heroes Can CollectVideoPremium
Solution68.7%Medium
Array, Binary Search +3· 1 company
2868. The Wording GamePremium
Solution53.6%Hard
Array, Game Theory +4
3284. Sum of Consecutive SubarraysVideoPremium
Solution43.4%Medium
Array, Dynamic Programming +1
3400. Maximum Number of Matching Indices After Right ShiftsVideoPremium
Solution85.3%Medium
Array, Simulation +1
3406. Find the Lexicographically Largest String From the Box IIVideoPremium
Solution48.9%Hard
String, Two Pointers
3460. Longest Common Prefix After at Most One RemovalPremium
Solution68.3%Medium
String, Two Pointers
3555. Smallest Subarray to Sort in Every Sliding WindowVideoPremium
Solution58.8%Medium
Array, Greedy +4
3667. Sort Array By Absolute ValueVideoPremium
Solution86.7%Easy
Array, Math +2· 1 company
3730. Maximum Calories Burnt from JumpsVideoPremium
Solution72.8%Medium
Array, Greedy +2· 1 company
3865. Reverse K SubarraysPremium
Solution88.6%Medium
Array, Two Pointers
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