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Array70 Database51 Dynamic Programming26 String25 Math22 Depth-First Search18 Hash Table16 Graph15 Binary Search14 Breadth-First Search12 Heap (Priority Queue)12 Sorting12 Tree12 Greedy10 Matrix10 All topics

Hard · Premium · 195 results

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TitleSolutionAcceptDifficultyTopics

3214. Year on Year Growth RateVideoPremium

Solution51.7%Hard

Database· 1 company

3231. Minimum Number of Increasing Subsequence to Be RemovedVideoPremium

Solution47.9%Hard

Array, Binary Search

3236. CEO Subordinate HierarchyVideoPremium

Solution70.5%Hard

3268. Find Overlapping Shifts IIVideoPremium

Solution56.5%Hard

3269. Constructing Two Increasing ArraysPremium

Solution61.8%Hard

Array, Dynamic Programming

3279. Maximum Total Area Occupied by PistonsVideoPremium

Solution41.3%Hard

Array, Counting +4

3299. Sum of Consecutive SubsequencesVideoPremium

Solution44.1%Hard

Array, Dynamic Programming +1

3313. Find the Last Marked Nodes in TreeVideoPremium

Solution57.1%Hard

Depth-First Search, Tree· 1 company

3329. Count Substrings With K-Frequency Characters IIVideoPremium

Solution72.2%Hard

Hash Table, Sliding Window +1

3359. Find Sorted Submatrices With Maximum Element at Most KPremium

–52.5%Hard

Array, Matrix +2

3368. First Letter CapitalizationVideoPremium

Solution86.8%Hard

3369. Design an Array Statistics Tracker VideoPremium

Solution35.7%Hard

Binary Search, Hash Table +1· 1 company

3383. Minimum Runes to Add to Cast SpellPremium

Solution45.2%Hard

Array, Breadth-First Search +4· 1 company

3384. Team Dominance by Pass SuccessPremium

Solution72.1%Hard

–

3385. Minimum Time to Break Locks IIPremium

Solution45.7%Hard

Array, Depth-First Search +1· 1 company

3390. Longest Team Pass StreakPremium

Solution40.2%Hard

–

3401. Find Circular Gift Exchange ChainsPremium

–50.7%Hard

–

3406. Find the Lexicographically Largest String From the Box IIVideoPremium

Solution48.9%Hard

String, Two Pointers

3416. Subsequences with a Unique Middle Mode IIPremium

–16.3%Hard

Array, Combinatorics +2

3506. Find Time Required to Eliminate Bacterial StrainsPremium

Solution63.2%Hard

Array, Greedy +2

3526. Range XOR Queries with Subarray ReversalsPremium

–62.4%Hard

Array, Binary Tree +1

3549. Multiply Two PolynomialsVideoPremium

Solution59.2%Hard

3632. Subarrays with XOR at Least KPremium

–46.3%Hard

Array, Bit Manipulation +2

3735. Lexicographically Smallest String After Reverse IIPremium

–49.0%Hard

Binary Search, Hash Function +3

3749. Evaluate Valid ExpressionsPremium

Solution69.2%Hard

Divide and Conquer, Hash Table +3

3802. Number of Ways to Paint SheetsPremium

–66.7%Hard

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3888. Minimum Operations to Make All Grid Elements EqualPremium

Solution61.3%Hard

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3916. Number of ZigZag Arrays IIIPremium

–62.2%Hard

–

3929. Minimum Partition Score IIPremium

–43.5%Hard

–

3930. Power Update After K-th Largest Insertion IIPremium

Solution79.2%Hard

–

3944. Minimum Operations to Make Array Modulo Alternating IIPremium

–64.5%Hard

–

3949. Subtree Inversion Sum IIPremium

–68.9%Hard

–

3967. Finish Time of Tasks IIPremium

–18.9%Hard

–

3972. Valid Subarrays With Matching Sum Digits IIPremium

–25.6%Hard

–

3973. Distinct Gate Paths to LCAPremium

–59.1%Hard

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3990. Create Grid With Exactly K Paths IIPremium

–64.4%Hard

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4004. Minimum Moves to Balance Circular Array IIPremium

Solution60.1%Hard

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4005. Minimum Operations to Make Array Equal IIIPremium

–26.3%Hard

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4018. Total Sum of Interaction Cost in Tree Groups IIPremium

–67.5%Hard

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4028. Minimum Operations to Make a Rotated Palindrome IIPremium

Solution65.8%Hard

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4029. Elevator Requests IVVideoPremium

Solution58.3%Hard

–

4042. Valid K-Unique Subarrays IIPremium

–68.5%Hard

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4047. Minimum Operations to Make XOR of All Elements ZeroPremium

–56.7%Hard

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4060. Count Evenly Good IntegersPremium

Solution78.8%Hard

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4082. Minimum Operations to Stabilize a Binary TreePremium

–62.9%Hard

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Showing 151–195 of 195