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Array1,212 Hash Table473 String437 Math331 Greedy330 Dynamic Programming327 Sorting302 Depth-First Search208 Binary Search189 Breadth-First Search166 Matrix163 Tree158 Prefix Sum155 Two Pointers150 Database137 All topics

Medium · 150 results

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TitleSolutionAcceptDifficultyTopics

2337. Move Pieces to Obtain a StringVideo

Solution56.7%Medium

String, Two Pointers· 5 companies

2396. Strictly Palindromic NumberVideo

Solution90.3%Medium

Brainteaser, Math +1· 2 companies

2406. Divide Intervals Into Minimum Number of GroupsVideo

Solution63.7%Medium

Array, Greedy +4· 7 companies

2410. Maximum Matching of Players With TrainersVideo

Solution75.2%Medium

Array, Greedy +2· 3 companies

2422. Merge Operations to Turn Array Into a PalindromeVideoPremium

Solution69.0%Medium

Array, Greedy +1· 5 companies

2462. Total Cost to Hire K WorkersVideo

Solution43.6%Medium

Array, Heap (Priority Queue) +2· 4 companies

2486. Append Characters to String to Make SubsequenceVideo

Solution72.9%Medium

Greedy, String +1· 2 companies

2491. Divide Players Into Teams of Equal SkillVideo

Solution69.0%Medium

Array, Hash Table +2· 6 companies

2563. Count the Number of Fair PairsVideo

Solution52.7%Medium

Array, Binary Search +2· 9 companies

2576. Find the Maximum Number of Marked IndicesVideo

Solution41.7%Medium

Array, Binary Search +3

2592. Maximize Greatness of an ArrayVideo

Solution62.0%Medium

Array, Greedy +2· 7 companies

2674. Split a Circular Linked ListVideoPremium

Solution78.1%Medium

Linked List, Two Pointers

2825. Make String a Subsequence Using Cyclic IncrementsVideo

Solution65.7%Medium

String, Two Pointers· 1 company

2838. Maximum Coins Heroes Can CollectVideoPremium

Solution68.7%Medium

Array, Binary Search +3· 1 company

2856. Minimum Array Length After Pair RemovalsVideo

Solution27.8%Medium

Array, Binary Search +4· 1 company

2905. Find Indices With Index and Value Difference IIVideo

Solution32.6%Medium

Array, Two Pointers· 1 company

2938. Separate Black and White BallsVideo

Solution64.0%Medium

Greedy, String +1· 5 companies

3006. Find Beautiful Indices in the Given Array IVideo

Solution41.2%Medium

Binary Search, Hash Function +4· 5 companies

3132. Find the Integer Added to Array IIVideo

Solution32.9%Medium

Array, Enumeration +2· 1 company

3186. Maximum Total Damage With Spell CastingVideo

Solution45.1%Medium

Array, Binary Search +5· 7 companies

3239. Minimum Number of Flips to Make Binary Grid Palindromic IVideo

Solution74.3%Medium

Array, Matrix +1

3240. Minimum Number of Flips to Make Binary Grid Palindromic IIVideo

Solution25.5%Medium

Array, Matrix +1· 1 company

3284. Sum of Consecutive SubarraysVideoPremium

Solution43.4%Medium

Array, Dynamic Programming +1

3302. Find the Lexicographically Smallest Valid SequenceVideo

Solution57.9%Medium

Dynamic Programming, Greedy +2

3316. Find Maximum Removals From Source StringVideo

Solution39.3%Medium

Array, Dynamic Programming +3· 1 company

3400. Maximum Number of Matching Indices After Right ShiftsVideoPremium

Solution85.3%Medium

Array, Simulation +1

3403. Find the Lexicographically Largest String From the Box IVideo

Solution41.0%Medium

Enumeration, String +1· 5 companies

3460. Longest Common Prefix After at Most One RemovalPremium

Solution68.3%Medium

String, Two Pointers

3503. Longest Palindrome After Substring Concatenation IVideo

Solution43.8%Medium

Dynamic Programming, Enumeration +2· 2 companies

3555. Smallest Subarray to Sort in Every Sliding WindowVideoPremium

Solution58.8%Medium

Array, Greedy +4

3584. Maximum Product of First and Last Elements of a SubsequenceVideo

Solution31.9%Medium

Array, Two Pointers· 1 company

3635. Earliest Finish Time for Land and Water Rides IIVideo

Solution64.2%Medium

Array, Binary Search +3· 2 companies

3645. Maximum Total from Optimal Activation OrderVideo

Solution33.1%Medium

Array, Greedy +3· 2 companies

3649. Number of Perfect PairsVideo

–34.2%Medium

Array, Math +2· 6 companies

3685. Subsequence Sum After Capping ElementsVideo

–25.2%Medium

Array, Dynamic Programming +2· 1 company

3722. Lexicographically Smallest String After ReverseVideo

Solution53.9%Medium

Binary Search, Enumeration +1

3730. Maximum Calories Burnt from JumpsVideoPremium

Solution72.8%Medium

Array, Greedy +2· 1 company

3752. Lexicographically Smallest Negated Permutation that Sums to TargetVideo

–31.5%Medium

Array, Greedy +3· 1 company

3766. Minimum Operations to Make Binary PalindromeVideo

Solution51.2%Medium

Array, Binary Search +2· 1 company

3775. Reverse Words With Same Vowel CountVideo

Solution66.6%Medium

Simulation, String +1

3814. Maximum Capacity Within BudgetVideo

Solution20.7%Medium

Array, Binary Search +2· 2 companies

3844. Longest Almost-Palindromic SubstringVideo

Solution22.8%Medium

Dynamic Programming, String +1

3865. Reverse K SubarraysPremium

Solution88.6%Medium

Array, Two Pointers

3867. Sum of GCD of Formed PairsVideo

Solution75.1%Medium

Array, Math +3· 1 company

3896. Minimum Operations to Transform Array into Alternating PrimeVideo

Solution53.2%Medium

Array, Binary Search +4· 1 company

3983. Subsequence After One ReplacementVideo

Solution21.6%Medium

String, Two Pointers

3998. Transform Binary String Using Subsequence SortVideo

–37.9%Medium

Array, Greedy +2

4001. Aggregate Two Time SeriesVideo

Solution57.9%Medium

Array, Two Pointers

4014. Minimum Total Price After Applying DiscountsVideo

Solution71.8%Medium

Array, Greedy +2

4026. Maximum Gap Between StationsVideo

Solution52.4%Medium

Greedy, String +1

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