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Problems

332 problems

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

Hard · 332 results

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TitleSolutionAcceptDifficultyTopics
1928. Minimum Cost to Reach Destination in TimeVideo
Solution42.6%Hard
Array, Dynamic Programming +1· 6 companies
1931. Painting a Grid With Three Different ColorsVideo
Solution77.2%Hard
Dynamic Programming· 7 companies
1955. Count Number of Special SubsequencesVideo
Solution53.4%Hard
Array, Dynamic Programming· 1 company
1977. Number of Ways to Separate NumbersVideo
Solution21.7%Hard
Dynamic Programming, String +1· 1 company
1987. Number of Unique Good SubsequencesVideo
Solution52.7%Hard
Dynamic Programming, String· 2 companies
1994. The Number of Good SubsetsVideo
Solution37.8%Hard
Array, Bit Manipulation +3· 2 companies
2003. Smallest Missing Genetic Value in Each SubtreeVideo
Solution48.4%Hard
Depth-First Search, Dynamic Programming +2
2005. Subtree Removal Game with Fibonacci TreeVideoPremium
–54.9%Hard
Binary Tree, Dynamic Programming +3· 1 company
2019. The Score of Students Solving Math ExpressionVideo
Solution34.8%Hard
Array, Dynamic Programming +4· 2 companies
2035. Partition Array Into Two Arrays to Minimize Sum DifferenceVideo
Solution24.4%Hard
Array, Binary Search +5· 9 companies
2050. Parallel Courses IIIVideo
Solution67.0%Hard
Array, Dynamic Programming +2· 9 companies
2060. Check if an Original String Exists Given Two Encoded StringsVideo
Solution43.6%Hard
Dynamic Programming, String· 2 companies
2088. Count Fertile Pyramids in a LandVideo
Solution66.5%Hard
Array, Dynamic Programming +1· 1 company
2143. Choose Numbers From Two Arrays in RangePremium
Solution51.4%Hard
Array, Dynamic Programming· 1 company
2147. Number of Ways to Divide a Long CorridorVideo
Solution54.6%Hard
Dynamic Programming, Math +1· 3 companies
2163. Minimum Difference in Sums After Removal of ElementsVideo
Solution69.8%Hard
Array, Dynamic Programming +1· 7 companies
2167. Minimum Time to Remove All Cars Containing Illegal GoodsVideo
Solution42.2%Hard
Dynamic Programming, String· 1 company
2172. Maximum AND Sum of ArrayVideo
Solution51.4%Hard
Array, Bit Manipulation +2· 1 company
2188. Minimum Time to Finish the RaceVideo
Solution43.4%Hard
Array, Dynamic Programming· 1 company
2209. Minimum White Tiles After Covering With CarpetsVideo
Solution39.3%Hard
Dynamic Programming, Prefix Sum +1· 1 company
2218. Maximum Value of K Coins From PilesVideo
Solution60.5%Hard
Array, Dynamic Programming +1· 1 company
2247. Maximum Cost of Trip With K HighwaysPremium
Solution50.2%Hard
Bit Manipulation, Bitmask +2
2262. Total Appeal of A StringVideo
Solution56.4%Hard
Dynamic Programming, Hash Table +1· 2 companies
2263. Make Array Non-decreasing or Non-increasingVideoPremium
Solution64.7%Hard
Dynamic Programming, Greedy· 2 companies
2267. Check if There Is a Valid Parentheses String PathVideo
Solution57.2%Hard
Array, Dynamic Programming +1· 1 company
2272. Substring With Largest VarianceVideo
Solution46.1%Hard
Array, Dynamic Programming· 1 company
2312. Selling Pieces of WoodVideo
Solution52.8%Hard
Array, Dynamic Programming +1· 1 company
2313. Minimum Flips in Binary Tree to Get ResultVideoPremium
Solution56.9%Hard
Binary Tree, Depth-First Search +2· 1 company
2318. Number of Distinct Roll SequencesVideo
Solution58.2%Hard
Dynamic Programming, Memoization· 1 company
2321. Maximum Score Of Spliced ArrayVideo
Solution58.9%Hard
Array, Dynamic Programming· 1 company
2328. Number of Increasing Paths in a GridVideo
Solution57.4%Hard
Array, Breadth-First Search +6· 2 companies
2338. Count the Number of Ideal ArraysVideo
Solution57.0%Hard
Combinatorics, Dynamic Programming +2· 4 companies
2355. Maximum Number of Books You Can TakeVideoPremium
Solution40.9%Hard
Array, Dynamic Programming +2· 1 company
2361. Minimum Costs Using the Train LineVideoPremium
Solution78.4%Hard
Array, Dynamic Programming· 1 company
2376. Count Special IntegersVideo
Solution45.2%Hard
Dynamic Programming, Math· 1 company
2403. Minimum Time to Kill All MonstersVideoPremium
Solution56.3%Hard
Array, Bit Manipulation +2· 1 company
2407. Longest Increasing Subsequence IIVideo
Solution26.7%Hard
Array, Binary Indexed Tree +5· 1 company
2430. Maximum Deletions on a StringVideo
Solution36.4%Hard
Dynamic Programming, Hash Function +3· 1 company
2435. Paths in Matrix Whose Sum Is Divisible by KVideo
Solution58.7%Hard
Array, Dynamic Programming +1· 4 companies
2463. Minimum Total Distance TraveledVideo
Solution63.2%Hard
Array, Dynamic Programming +1· 5 companies
2472. Maximum Number of Non-overlapping Palindrome SubstringsVideo
Solution60.9%Hard
Dynamic Programming, Greedy +2· 5 companies
2478. Number of Beautiful PartitionsVideo
Solution33.5%Hard
Dynamic Programming, String· 1 company
2484. Count Palindromic SubsequencesVideo
Solution41.7%Hard
Dynamic Programming, String· 11 companies
2518. Number of Great PartitionsVideo
Solution34.0%Hard
Array, Dynamic Programming· 2 companies
2538. Difference Between Maximum and Minimum Price SumVideo
Solution34.5%Hard
Array, Depth-First Search +2· 2 companies
2547. Minimum Cost to Split an ArrayVideo
Solution45.4%Hard
Array, Counting +2· 1 company
2552. Count Increasing QuadrupletsVideo
Solution34.6%Hard
Array, Binary Indexed Tree +3· 2 companies
2573. Find the String with LCPVideo
Solution63.3%Hard
Array, Dynamic Programming +4· 1 company
2581. Count Number of Possible Root NodesVideo
Solution49.3%Hard
Array, Depth-First Search +3
2585. Number of Ways to Earn PointsVideo
Solution60.2%Hard
Array, Dynamic Programming· 1 company
Showing 151–200 of 332