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248 problems

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Prefix Sum Array2,209 String870 Hash Table786 Math682 Dynamic Programming666 Sorting504 Greedy480 Binary Search352 Depth-First Search335 Database303 Bit Manipulation283 Matrix278 Tree261 Breadth-First Search255 Two Pointers249 All topics

With video · 248 results

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TitleSolutionAcceptDifficultyTopics

3015. Count the Number of Houses at a Certain Distance IVideo

Solution58.2%Medium

Breadth-First Search, Graph +1· 1 company

3017. Count the Number of Houses at a Certain Distance IIVideo

Solution23.7%Hard

Graph, Prefix Sum· 1 company

3026. Maximum Good Subarray SumVideo

Solution22.7%Medium

Array, Hash Table +1· 5 companies

3028. Ant on the BoundaryVideo

Solution74.6%Easy

Array, Prefix Sum +1· 3 companies

3070. Count Submatrices with Top-Left Element and Sum Less Than kVideo

Solution74.8%Medium

Array, Matrix +1· 2 companies

3077. Maximum Strength of K Disjoint SubarraysVideo

Solution28.2%Hard

Array, Dynamic Programming +1· 2 companies

3086. Minimum Moves to Pick K OnesVideo

Solution21.6%Hard

Array, Greedy +2· 1 company

3096. Minimum Levels to Gain More PointsVideo

Solution40.4%Medium

Array, Prefix Sum· 1 company

3104. Find Longest Self-Contained SubstringVideoPremium

Solution58.6%Hard

Binary Search, Hash Table +2· 1 company

3129. Find All Possible Stable Binary Arrays IVideo

Solution53.8%Medium

Dynamic Programming, Prefix Sum· 3 companies

3130. Find All Possible Stable Binary Arrays IIVideo

Solution58.4%Hard

Dynamic Programming, Prefix Sum· 2 companies

3147. Taking Maximum Energy From the Mystic DungeonVideo

Solution61.0%Medium

Array, Prefix Sum· 5 companies

3152. Special Array IIVideo

Solution45.8%Medium

Array, Binary Search +1· 4 companies

3179. Find the N-th Value After K SecondsVideo

Solution54.0%Medium

Array, Combinatorics +3· 1 company

3191. Minimum Operations to Make Binary Array Elements Equal to One IVideo

Solution80.4%Medium

Array, Bit Manipulation +3· 6 companies

3212. Count Submatrices With Equal Frequency of X and YVideo

Solution69.5%Medium

Array, Matrix +1· 2 companies

3224. Minimum Array Changes to Make Differences EqualVideo

Solution24.9%Medium

Array, Hash Table +1· 2 companies

3225. Maximum Score From Grid OperationsVideo

Solution63.5%Hard

Array, Dynamic Programming +2· 3 companies

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

3261. Count Substrings That Satisfy K-Constraint IIVideo

Solution24.1%Hard

Array, Binary Search +3

3279. Maximum Total Area Occupied by PistonsVideoPremium

Solution41.3%Hard

Array, Counting +4

3312. Sorted GCD Pair QueriesVideo

Solution58.4%Hard

Array, Binary Search +6· 1 company

3333. Find the Original Typed String IIVideo

Solution45.6%Hard

Dynamic Programming, Prefix Sum +1· 5 companies

3346. Maximum Frequency of an Element After Performing Operations IVideo

Solution40.1%Medium

Array, Binary Search +3· 4 companies

3347. Maximum Frequency of an Element After Performing Operations IIVideo

Solution53.8%Hard

Array, Binary Search +3· 3 companies

3354. Make Array Elements Equal to ZeroVideo

Solution68.3%Easy

Array, Prefix Sum +1· 5 companies

3355. Zero Array Transformation IVideo

Solution54.5%Medium

Array, Prefix Sum· 5 companies

3356. Zero Array Transformation IIVideo

Solution43.6%Medium

Array, Binary Search +1· 5 companies

3361. Shift Distance Between Two StringsVideo

Solution52.8%Medium

Array, Prefix Sum +1· 1 company

3362. Zero Array Transformation IIIVideo

Solution54.9%Medium

Array, Greedy +3· 5 companies

3364. Minimum Positive Sum Subarray Video

Solution45.6%Easy

Array, Prefix Sum +1

3381. Maximum Subarray Sum With Length Divisible by KVideo

Solution49.6%Medium

Array, Hash Table +1· 4 companies

3413. Maximum Coins From K Consecutive BagsVideo

–28.5%Medium

Array, Binary Search +4· 2 companies

3425. Longest Special PathVideo

–23.2%Hard

Array, Depth-First Search +3

3427. Sum of Variable Length SubarraysVideo

Solution85.6%Easy

Array, Prefix Sum· 2 companies

3432. Count Partitions with Even Sum DifferenceVideo

Solution85.2%Easy

Array, Math +1· 5 companies

3434. Maximum Frequency After Subarray OperationVideo

–31.6%Medium

Array, Dynamic Programming +4· 4 companies

3445. Maximum Difference Between Even and Odd Frequency IIVideo

Solution48.7%Hard

Enumeration, Prefix Sum +2· 6 companies

3473. Sum of K Subarrays With Length at Least MVideo

–26.0%Medium

Array, Dynamic Programming +1

3480. Maximize Subarrays After Removing One Conflicting PairVideo

Solution64.6%Hard

Array, Enumeration +2· 5 companies

3486. Longest Special Path IIVideo

–19.8%Hard

Array, Depth-First Search +3· 1 company

3494. Find the Minimum Amount of Time to Brew PotionsVideo

Solution62.7%Medium

Array, Prefix Sum +1· 6 companies

3500. Minimum Cost to Divide Array Into SubarraysVideo

–28.2%Hard

Array, Dynamic Programming +1

3538. Merge Operations for Minimum Travel TimeVideo

–30.5%Hard

Array, Dynamic Programming +1· 1 company

3540. Minimum Time to Visit All HousesVideoPremium

–69.9%Medium

Array, Prefix Sum· 1 company

3546. Equal Sum Grid Partition IVideo

Solution52.9%Medium

Array, Enumeration +2· 4 companies

3548. Equal Sum Grid Partition IIVideo

Solution39.5%Hard

Array, Enumeration +3· 2 companies

3578. Count Partitions With Max-Min Difference at Most KVideo

Solution58.2%Medium

Array, Dynamic Programming +4· 4 companies

3599. Partition Array to Minimize XORVideo

Solution41.2%Medium

Array, Bit Manipulation +2· 1 company

Showing 151–200 of 248