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Problems

332 problems

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Array578Dynamic Programming332String191Math187Binary Search136Hash Table134Sorting106Greedy104Bit Manipulation103Graph96Depth-First Search91Heap (Priority Queue)78Prefix Sum77Matrix75Breadth-First Search71All topics

Hard · 332 results

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TitleSolutionAcceptDifficultyTopics
2617. Minimum Number of Visited Cells in a GridVideo
Solution24.1%Hard
Array, Breadth-First Search +6· 3 companies
2646. Minimize the Total Price of the TripsVideo
Solution48.5%Hard
Array, Depth-First Search +3
2681. Power of HeroesVideo
Solution31.4%Hard
Array, Dynamic Programming +3
2713. Maximum Strictly Increasing Cells in a MatrixVideo
Solution31.3%Hard
Array, Binary Search +6
2719. Count of IntegersVideo
Solution38.9%Hard
Dynamic Programming, Math +1· 2 companies
2742. Painting the WallsVideo
Solution49.0%Hard
Array, Dynamic Programming· 5 companies
2791. Count Paths That Can Form a Palindrome in a TreeVideo
Solution52.6%Hard
Bit Manipulation, Bitmask +3· 4 companies
2801. Count Stepping Numbers in RangeVideo
Solution28.7%Hard
Dynamic Programming, String· 2 companies
2809. Minimum Time to Make Array Sum At Most xVideo
Solution27.4%Hard
Array, Dynamic Programming +1· 1 company
2827. Number of Beautiful Integers in the RangeVideo
Solution23.1%Hard
Dynamic Programming, Math· 1 company
2836. Maximize Value of Function in a Ball Passing GameVideo
Solution31.3%Hard
Array, Bit Manipulation +1· 1 company
2851. String TransformationVideo
Solution27.4%Hard
Dynamic Programming, Math +2· 3 companies
2858. Minimum Edge Reversals So Every Node Is ReachableVideo
Solution60.2%Hard
Breadth-First Search, Depth-First Search +2· 11 companies
2867. Count Valid Paths in a TreeVideo
Solution36.2%Hard
Depth-First Search, Dynamic Programming +3· 1 company
2876. Count Visited Nodes in a Directed GraphVideo
Solution31.6%Hard
Dynamic Programming, Graph +1· 1 company
2902. Count of Sub-Multisets With Bounded SumVideo
Solution22.3%Hard
Array, Dynamic Programming +2
2911. Minimum Changes to Make K Semi-palindromesVideo
Solution35.3%Hard
Dynamic Programming, String +1
2912. Number of Ways to Reach Destination in the GridPremium
Solution57.7%Hard
Combinatorics, Dynamic Programming +1· 1 company
2916. Subarrays Distinct Element Sum of Squares IIVideo
Solution54.8%Hard
Array, Binary Indexed Tree +2· 1 company
2920. Maximum Points After Collecting Coins From All NodesVideo
Solution36.6%Hard
Array, Bit Manipulation +3· 1 company
2926. Maximum Balanced Subsequence SumVideo
Solution25.8%Hard
Array, Binary Indexed Tree +3· 1 company
2945. Find Maximum Non-decreasing Array LengthVideo
Solution19.2%Hard
Array, Binary Search +5· 4 companies
2969. Minimum Number of Coins for Fruits IIVideoPremium
Solution49.2%Hard
Array, Dynamic Programming +3
2973. Find Number of Coins to Place in Tree NodesVideo
Solution37.4%Hard
Depth-First Search, Dynamic Programming +3· 1 company
2977. Minimum Cost to Convert String IIVideo
Solution59.1%Hard
Array, Dynamic Programming +4· 4 companies
2999. Count the Number of Powerful IntegersVideo
Solution46.3%Hard
Dynamic Programming, Math +1· 5 companies
3003. Maximize the Number of Partitions After OperationsVideo
Solution53.5%Hard
Bit Manipulation, Bitmask +2· 1 company
3018. Maximum Number of Removal Queries That Can Be Processed IVideoPremium
Solution44.8%Hard
Array, Dynamic Programming
3041. Maximize Consecutive Elements in an Array After ModificationVideo
Solution33.7%Hard
Array, Dynamic Programming +1· 1 company
3068. Find the Maximum Sum of Node ValuesVideo
Solution69.5%Hard
Array, Bit Manipulation +4· 4 companies
3077. Maximum Strength of K Disjoint SubarraysVideo
Solution28.2%Hard
Array, Dynamic Programming +1· 2 companies
3082. Find the Sum of the Power of All SubsequencesVideo
Solution38.7%Hard
Array, Dynamic Programming· 2 companies
3098. Find the Sum of Subsequence PowersVideo
Solution25.1%Hard
Array, Dynamic Programming +1· 1 company
3117. Minimum Sum of Values by Dividing ArrayVideo
Solution28.5%Hard
Array, Binary Search +4· 1 company
3130. Find All Possible Stable Binary Arrays IIVideo
Solution58.4%Hard
Dynamic Programming, Prefix Sum· 2 companies
3149. Find the Minimum Cost Array PermutationVideo
Solution26.1%Hard
Array, Bit Manipulation +2· 1 company
3154. Find Number of Ways to Reach the K-th StairVideo
Solution38.2%Hard
Bit Manipulation, Combinatorics +3· 1 company
3165. Maximum Sum of Subsequence With Non-adjacent ElementsVideo
Solution15.7%Hard
Array, Divide and Conquer +2· 2 companies
3177. Find the Maximum Length of a Good Subsequence IIVideo
Solution25.2%Hard
Array, Dynamic Programming +1· 1 company
3181. Maximum Total Reward Using Operations IIVideo
Solution21.9%Hard
Array, Bit Manipulation +1· 1 company
3193. Count the Number of InversionsVideo
Solution31.9%Hard
Array, Dynamic Programming· 5 companies
3213. Construct String with Minimum CostVideo
Solution19.0%Hard
Array, Dynamic Programming +2· 1 company
3225. Maximum Score From Grid OperationsVideo
Solution63.5%Hard
Array, Dynamic Programming +2· 3 companies
3229. Minimum Operations to Make Array Equal to TargetVideo
Solution42.0%Hard
Array, Dynamic Programming +3· 3 companies
3241. Time Taken to Mark All NodesVideo
Solution29.5%Hard
Depth-First Search, Dynamic Programming +2
3250. Find the Count of Monotonic Pairs IVideo
Solution47.6%Hard
Array, Combinatorics +3· 2 companies
3251. Find the Count of Monotonic Pairs IIVideo
Solution24.7%Hard
Array, Combinatorics +3· 1 company
3256. Maximum Value Sum by Placing Three Rooks IVideo
Solution17.0%Hard
Array, Dynamic Programming +2
3257. Maximum Value Sum by Placing Three Rooks IIVideo
Solution26.1%Hard
Array, Dynamic Programming +2
3260. Find the Largest Palindrome Divisible by KVideo
Solution17.0%Hard
Dynamic Programming, Greedy +3· 2 companies
Showing 201–250 of 332