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Problems

331 problems

Has videoPremium onlyReset
Array1,212Hash Table473String437Math331Greedy330Dynamic Programming327Sorting302Depth-First Search208Binary Search189Breadth-First Search166Matrix163Tree158Prefix Sum155Two Pointers150Database137All topics

Medium · 331 results

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TitleSolutionAcceptDifficultyTopics
3101. Count Alternating SubarraysVideo
Solution57.6%Medium
Array, Math· 1 company
3115. Maximum Prime DifferenceVideo
Solution59.3%Medium
Array, Math +1· 1 company
3128. Right TrianglesVideo
Solution48.5%Medium
Array, Combinatorics +3· 2 companies
3153. Sum of Digit Differences of All PairsVideo
Solution43.3%Medium
Array, Counting +2· 2 companies
3155. Maximum Number of Upgradable ServersVideoPremium
Solution43.8%Medium
Array, Binary Search +1· 1 company
3179. Find the N-th Value After K SecondsVideo
Solution54.0%Medium
Array, Combinatorics +3· 1 company
3227. Vowels Game in a StringVideo
Solution77.1%Medium
Brainteaser, Game Theory +2· 3 companies
3233. Find the Count of Numbers Which Are Not SpecialVideo
Solution28.3%Medium
Array, Math +1· 1 company
3247. Number of Subsequences with Odd SumVideoPremium
Solution47.6%Medium
Array, Combinatorics +2
3296. Minimum Number of Seconds to Make Mountain Height ZeroVideo
Solution58.4%Medium
Array, Binary Search +3· 3 companies
3326. Minimum Division Operations to Make Array Non DecreasingVideo
Solution29.1%Medium
Array, Greedy +2· 2 companies
3334. Find the Maximum Factor Score of ArrayVideo
Solution41.0%Medium
Array, Math +1· 1 company
3335. Total Characters in String After Transformations IVideo
Solution45.7%Medium
Counting, Dynamic Programming +3· 4 companies
3377. Digit Operations to Make Two Integers EqualVideo
Solution31.3%Medium
Graph, Heap (Priority Queue) +3· 2 companies
3380. Maximum Area Rectangle With Point Constraints IVideo
Solution51.1%Medium
Array, Binary Indexed Tree +5· 2 companies
3404. Count Special SubsequencesVideo
Solution29.9%Medium
Array, Enumeration +2· 1 company
3422. Minimum Operations to Make Subarray Elements EqualPremium
Solution46.8%Medium
Array, Hash Table +3
3428. Maximum and Minimum Sums of at Most Size K SubsequencesVideo
–21.7%Medium
Array, Combinatorics +3· 3 companies
3433. Count Mentions Per UserVideo
Solution50.8%Medium
Array, Math +2· 4 companies
3443. Maximum Manhattan Distance After K ChangesVideo
Solution54.2%Medium
Counting, Hash Table +2· 4 companies
3468. Find the Number of Copy ArraysVideo
–46.9%Medium
Array, Math· 2 companies
3513. Number of Unique XOR Triplets IVideo
Solution57.2%Medium
Array, Bit Manipulation +1· 1 company
3514. Number of Unique XOR Triplets IIVideo
Solution52.9%Medium
Array, Bit Manipulation +2· 1 company
3524. Find X Value of Array IVideo
Solution66.5%Medium
Array, Dynamic Programming +1· 1 company
3535. Unit Conversion IIVideoPremium
Solution61.5%Medium
Array, Breadth-First Search +3· 1 company
3556. Sum of Largest Prime SubstringsVideo
Solution37.9%Medium
Hash Table, Math +3· 1 company
3558. Number of Ways to Assign Edge Weights IVideo
Solution63.7%Medium
Depth-First Search, Math +1· 2 companies
3577. Count the Number of Computer Unlocking PermutationsVideo
Solution59.0%Medium
Array, Brainteaser +2· 3 companies
3588. Find Maximum Area of a TriangleVideo
Solution29.8%Medium
Array, Enumeration +4· 2 companies
3589. Count Prime-Gap Balanced SubarraysVideo
–23.7%Medium
Array, Math +4· 1 company
3596. Minimum Cost Path with Alternating Directions IVideoPremium
Solution68.6%Medium
Brainteaser, Math
3610. Minimum Number of Primes to Sum to TargetVideoPremium
Solution59.8%Medium
Array, Dynamic Programming +2· 1 company
3618. Split Array by Prime IndicesVideo
Solution49.3%Medium
Array, Math +1
3623. Count Number of Trapezoids IVideo
Solution48.1%Medium
Array, Geometry +2· 3 companies
3627. Maximum Median Sum of Subsequences of Size 3Video
Solution65.1%Medium
Array, Game Theory +3· 2 companies
3629. Minimum Jumps to Reach End via Prime TeleportationVideo
Solution44.6%Medium
Array, Breadth-First Search +3· 4 companies
3648. Minimum Sensors to Cover GridVideo
–67.6%Medium
Math· 4 companies
3649. Number of Perfect PairsVideo
–34.2%Medium
Array, Math +2· 6 companies
3669. Balanced K-Factor DecompositionVideo
Solution40.2%Medium
Backtracking, Math +1· 2 companies
3680. Generate ScheduleVideo
–25.3%Medium
Array, Greedy +1· 1 company
3723. Maximize Sum of Squares of DigitsVideo
Solution71.2%Medium
Greedy, Math· 1 company
3732. Maximum Product of Three Elements After One ReplacementVideo
Solution47.8%Medium
Array, Greedy +2· 2 companies
3733. Minimum Time to Complete All DeliveriesVideo
–35.4%Medium
Binary Search, Math· 2 companies
3747. Count Distinct Integers After Removing ZerosVideo
Solution23.1%Medium
Dynamic Programming, Math· 1 company
3751. Total Waviness of Numbers in Range IVideo
Solution86.9%Medium
Dynamic Programming, Enumeration +1· 2 companies
3752. Lexicographically Smallest Negated Permutation that Sums to TargetVideo
–31.5%Medium
Array, Greedy +3· 1 company
3756. Concatenate Non-Zero Digits and Multiply by Sum IIVideo
Solution42.7%Medium
Math, Prefix Sum +1· 3 companies
3761. Minimum Absolute Distance Between Mirror PairsVideo
Solution59.1%Medium
Array, Hash Table +1· 4 companies
3765. Complete Prime NumberVideo
Solution36.2%Medium
Enumeration, Math +1
3770. Largest Prime from Consecutive Prime SumVideo
Solution39.0%Medium
Array, Math +1· 2 companies
Showing 251–300 of 331